NWS Boston - Dewpoint Climatology

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Boston, MA
Bridgeport, CT
Hartford, CT
Concord, NH
Providence, RI
Worcester, MA

January
February
March
April
May
June
July
August
September
October
November
December
Miscellaneous

January Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	56	1945	20	-15	1956
2	57	1979	20	-16	1999*
3	56	1979	20	-18	1981
4	57	2000	20	-25	1981
5	58	2000	19	-23	1981
6	60	2007	19	-36	1959
7	53	1995*	19	-19	1945
8	54	1979	19	-21	1973*
9	58	1978	19	-25	1968
10	48	1972	19	-18	1982
11	56	1983*	19	-19	1968
12	59	1975	19	-18	1982
13	55	1972	18	-16	1971
14	58	2005*	18	-25	1988
15	58	1995	18	-29	1957
16	59	1995	18	-24	2004
17	59	1995	18	-25	1982
18	55	2006	18	-24	1982
19	56	1996	18	-17	1997
20	56	1996*	18	-18	1946
21	54	1947	18	-17	1955
22	58	1959	18	-19	1982
23	56	1957	18	-26	1976
24	57	1999	18	-19	2011
25	54	2010	18	-26	1945
26	56	1990	18	-22	1945
27	56	1974	18	-15	2003*
28	54	1976	18	-18	1955
29	53	1950	18	-23	1962
30	54	2013	18	-29	1948
31	59	1947	18	-19	1973

February Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	51	1951	18	-21	1973
2	54	1951	18	-27	1961
3	53	1983*	18	-21	1955
4	51	1970	18	-15	1996
5	52	2006	18	-14	1996*
6	48	1960	18	-28	1995
7	50	1953*	18	-15	1995*
8	49	1951	18	-23	1963
9	48	1950	18	-19	1959
10	56	1990	18	-21	1979
11	58	1981	18	-25	1979
12	60	1981	18	-23	1979*
13	56	1999	18	-31	1967
14	53	2000	19	-23	1979
15	56	1939	19	-22	1979
16	52	1939	19	-20	1979
17	48	2006	19	-22	1979
18	58	2008	19	-23	1979
19	53	1981	19	-13	2006*
20	54	1991	19	-19	1966*
21	56	1953	19	-26	1950
22	56	1997	20	-15	1968
23	59	1990	20	-22	1972
24	54	1985	20	-9	1999*
25	52	1985	20	-11	1982
26	53	1957	20	-15	1982
27	56	2000*	20	-13	1980
28	54	2000*	21	-13	2014

March Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	48	1999*	21	-17	1980
2	61	1991	21	-15	1980
3	56	2002*	21	-19	1950
4	53	2002	21	-17	1950
5	56	1964	22	-18	1948
6	55	1959	22	-23	2007
7	54	2011	22	-20	2007
8	58	1995	22	-19	2007
9	59	1998	23	-20	2007
10	57	1998	23	-14	1953
11	53	1992	23	-17	1953
12	52	1985	23	-15	1984
13	62	1990	24	-15	1984
14	57	2006	24	-3	2014*
15	53	1945	24	-12	1993
16	52	1971	24	-4	1980
17	60	1990	25	-9	2014
18	58	1990*	25	-8	1967
19	56	1986	25	-10	1967
20	56	1986*	25	-7	1949
21	56	2012*	26	-9	1988
22	59	1948	26	-5	1988*
23	56	1968	26	-5	1940
24	55	1938	27	-6	2014
25	55	1979	27	-8	1974
26	53	1988*	27	-8	1960
27	60	1949	28	-7	2012
28	58	1950	28	-8	1974
29	58	2003*	28	-8	1974
30	59	1977	28	1	1983
31	59	1977	29	1	1983*

April Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	58	1998*	29	0	1946
2	56	1945	29	2	2008
3	60	1977	30	1	2008*
4	59	2000*	30	-6	1957
5	59	1974	30	-7	1995
6	58	1994	31	-5	1995
7	59	1997	31	2	2013
8	59	1954	32	5	1950
9	60	1991	32	4	1955
10	55	2002	32	-3	1950*
11	57	1945	33	0	1997
12	60	1947	33	1	1976
13	59	1945	33	-2	1976
14	59	1945	34	1	1992
15	58	2014*	34	1	1992
16	62	1994	34	3	1992
17	62	1954	35	-4	1985
18	58	1976*	35	0	1985
19	61	2002	35	11	1990
20	61	2013	36	12	1947
21	61	1992	36	4	1981
22	62	2001	37	5	1981*
23	67	1977	37	8	1989
24	65	2001	37	7	1962
25	62	2001	38	7	2004
26	58	1996*	38	14	1966
27	65	1994	38	5	1966
28	63	2011	39	6	1947
29	61	2011	39	4	2010
30	58	1958*	40	6	2012

May Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	61	1996	40	10	1978
2	64	2010	40	7	1951
3	68	2010	41	5	1946
4	64	2001	41	0	1996
5	62	2001	41	12	1969
6	65	1977*	42	11	1969
7	64	1977	42	5	1995
8	64	2000	43	5	1950
9	63	1979*	43	4	1962
10	64	2007	43	-4	1962
11	64	1965	44	7	1962
12	68	1959	44	10	2005
13	68	1959	44	11	2005
14	67	1985	45	13	2005
15	64	2004*	45	16	1994
16	65	1957	45	17	1936
17	65	1991*	46	21	1957*
18	68	1991	46	17	1939
19	65	1999*	47	19	1939
20	66	1959	47	21	2002
21	67	1996	47	22	2002*
22	68	1959	48	24	1967*
23	68	1984	48	23	1971
24	68	1988	48	10	1956
25	69	1991	49	15	1956
26	69	1991	49	23	1956
27	67	2011*	49	22	1980
28	69	1991	50	24	1980
29	68	1984*	50	28	2008*
30	68	2011*	50	23	1961
31	68	1998*	51	26	1967*

June Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	71	2010	51	24	1945
2	72	2000	51	19	1953
3	70	2010	52	25	1986*
4	68	2010*	52	30	1947
5	71	2010	52	26	1971
6	71	2010	53	26	1971
7	74	1984	53	27	1958
8	73	1984	53	33	1951
9	73	1984	53	30	1980
10	74	1984	54	31	1957*
11	73	2005*	54	30	2004*
12	75	2005	54	31	2004
13	75	2005	55	32	2008
14	72	2005*	55	24	1958
15	73	1983	55	29	1978
16	73	1957	55	26	1964
17	74	2000	56	29	1964
18	73	1994*	56	30	1986
19	76	1994	56	33	1946
20	73	1964	56	32	1952
21	72	2012*	57	31	1940
22	73	1997	57	34	1963*
23	72	1997*	57	33	1993*
24	73	1964*	57	33	1953
25	73	1949	57	36	1986
26	75	2000	58	33	1986
27	76	2003	58	37	2014
28	74	1984	58	35	2014
29	74	1941	58	39	2001*
30	77	1945	58	35	2010

July Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	73	2013*	59	34	1978
2	76	1945	59	34	1978
3	75	1983	59	35	1962
4	75	2002*	59	33	1962
5	76	1999	59	38	1971
6	75	1984	59	38	1965
7	78	1994	60	37	1965
8	73	1958	60	34	1969
9	73	1958	60	38	1969
10	76	1955	60	40	1983
11	73	2013*	60	39	1996
12	73	1988	60	36	2009*
13	74	1977	60	41	1973
14	74	2010*	60	42	2009
15	75	1990*	61	42	1946
16	77	1984	61	39	1954
17	77	1998	61	40	1957
18	76	2005	61	44	1956
19	75	2013*	61	46	1971*
20	76	2013*	61	45	1996
21	76	1994	61	42	1966*
22	77	2003	61	43	1992*
23	76	2003	61	40	1985
24	75	2003*	61	41	2005*
25	77	1986	61	43	1953
26	76	1995*	61	42	1946
27	79	1940	61	45	2010*
28	74	1994*	61	45	1962
29	75	1995	61	39	1997
30	75	1995	61	42	1997*
31	74	1988*	61	40	1964

August Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	76	2006*	61	38	1987
2	76	2006*	61	42	1956
3	77	1971	61	40	1956
4	76	2003	61	44	1972*
5	76	1979*	61	35	2013
6	74	2012*	61	39	2013
7	77	2001	61	40	2010*
8	76	2000	61	39	2009
9	77	2001	61	39	1999
10	79	2001	61	40	1964
11	76	1988	61	39	1968
12	76	1988	61	40	2006
13	75	1994*	61	40	2006*
14	77	1988	61	41	1964*
15	77	1988	61	37	1963
16	76	1985	60	43	1974*
17	75	1977	60	38	1941
18	77	1994	60	41	1941
19	73	1991	60	39	1962
20	74	2006	60	36	1949
21	76	1959*	60	36	1969
22	74	2009*	60	35	1982
23	75	1976	60	36	1987
24	73	1998	59	31	1987
25	75	1979	59	34	1989
26	74	1979*	59	37	1989
27	75	1979	59	37	1989
28	75	1977	59	37	1982
29	76	1977	59	30	1996
30	74	2003*	58	32	1965
31	74	2005*	58	31	1965

September Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	73	2014*	58	30	1970
2	74	2014*	58	31	1970
3	77	1993	58	38	1967
4	76	1993	57	35	2007
5	74	2012	57	34	1996
6	73	2008*	57	35	2013
7	75	1999	57	35	1962
8	73	1959	56	36	1990*
9	75	1987	56	34	1978
10	72	2004*	56	33	1995
11	74	2013	56	33	1995
12	74	2013	55	28	2002
13	71	1971*	55	31	1955
14	72	1979	55	32	1953
15	74	1998	55	30	1964
16	74	1991	54	32	1984*
17	74	1991	54	29	1959
18	70	1955	54	30	1956
19	72	1991	54	28	1993
20	72	1989	53	24	1993
21	73	1989	53	25	1962
22	73	1965	53	29	1962
23	72	2002*	52	27	1947
24	70	2011	52	24	1963
25	72	2001*	52	24	1950
26	71	1970	51	22	1951
27	71	19988	51	14	1957
28	72	2002	51	20	1957
29	70	2010*	51	24	1981
30	71	2010	50	17	1981

October Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	71	1986	50	20	1981
2	70	1959	50	24	1992
3	70	2002	49	21	1945
4	67	1995*	49	20	1945
5	70	2002	49	13	1984
6	70	1991	48	11	1984
7	70	2013	48	15	1984
8	72	2005	47	19	1954
9	69	1976	47	19	2010
10	69	1959	47	19	1993
11	66	1936	46	14	1964
12	65	1990*	46	9	1963
13	72	1983	46	18	1993*
14	70	1983	45	20	1993
15	68	1995*	45	10	1996
16	69	1954	45	12	1996
17	64	2014	44	21	1972
18	64	1980*	44	9	1939
19	67	2007	44	14	1970*
20	68	2007	43	11	1972
21	66	1993	43	8	1952
22	67	1993*	42	15	1940
23	65	1979	42	11	1969
24	66	1959	42	11	1974
25	66	2001*	41	14	1962
26	64	1975	41	7	1941
27	66	2010*	41	8	1974
28	66	2010	40	9	1974
29	66	2003	40	8	1991
30	60	1946	39	8	1991
31	64	1949	39	10	1966

November Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	65	1994*	39	14	1992
2	66	1971	38	2	1965
3	65	1982*	38	5	2002
4	67	1982	38	12	1989
5	68	1982	37	13	1965
6	64	1948	37	4	1987
7	62	1959*	36	3	2002
8	63	1996	36	-1	2003
9	64	1986	36	1	2003
10	66	1948	35	1	1956
11	67	1948	35	4	1956
12	61	2002	35	9	1990
13	61	1982	34	0	1986
14	61	1959*	34	-1	1986
15	65	2008	34	1	1996
16	65	2008	33	0	1996
17	63	2006	33	-1	1996
18	62	1978	32	3	1959
19	64	1957	32	2	1936
20	64	1957*	32	4	1951
21	62	1985	31	0	1987
22	60	1953	31	1	2008*
23	63	1953	31	-1	2008
24	62	2014	30	-8	2013
25	62	1953	30	-11	2013
26	61	1979	30	-1	1978*
27	62	1979	29	-5	1957
28	61	1959	29	-2	1951
29	62	1990	29	0	1989*
30	62	1963	28	-6	1958

December Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	61	2006*	28	-7	2007
2	63	2006	28	-6	2007*
3	61	2009	27	-12	1976
4	59	1978	27	-12	1976
5	59	1978	27	-8	1989
6	63	1982	27	-3	2004*
7	61	1953	26	-8	1989
8	56	1951	26	-10	2008*
9	56	1966	26	-13	2002*
10	59	1953	25	-14	1976
11	58	1969	25	-14	1960
12	55	1959*	25	-15	1988
13	57	1946	24	-18	1976
14	56	1991	24	-18	1976
15	54	1983	24	-8	1989*
16	57	1982	24	-15	1988
17	61	2000	23	-10	1988*
18	59	2000	23	-10	1953
19	56	1990	23	-16	1953
20	58	2002	23	-29	1955
21	58	1957	22	-30	1955
22	58	1998*	22	-24	1955
23	59	1990	22	-9	1955
24	59	1990	22	-14	1992*
25	58	2014	22	-27	1980
26	56	1982*	21	-25	1980
27	56	1964*	21	-20	1968
28	56	1949	21	-10	1989
29	57	1982	21	-10	1993
30	55	1990	21	-21	1962
31	55	1990	20	-23	1962

Earliest/Latest
55
	Earliest 1st	Jan 1 1973, 1945, 1937
	Average 1st	March 8
	Latest 1st	June 3 1967

	Earliest Last	Oct 16 1952
	Average Last	December 1
	Latest Last	December 31 1990

60
	Earliest 1st	January 6 2007
	Average 1st	May 6
	Latest 1st	June 9 1967

	Earliest Last	September 23 1981
	Average Last	November 9
	Latest Last	December 17 2000

65
	Earliest 1st	April 23 1977
	Average 1st	May 29
	Latest 1st	June 26 1980

	Earliest Last	September 5 1966
	Average Last	October 9
	Latest Last	November 16 2008

70
	Earliest 1st	June 1 2010
	Average 1st	June 23
	Latest 1st	July 22 1951

	Earliest Last	August 3 1975
	Average Last	September 11
	Latest Last	October 14 1987

All Time Extremes:
Highest		Lowest
79	July 27 1940 August 10 2001	-36	Jan 6 1959
78	July 7 1994	-31	Feb 13 1967
77	July 22 2003 11 earlier dates	-30	Dec 21 1955
		-29	Jan 15 1957 Dec 20 1955 Jan 30 1948

Period of Record:
Extremes 1936 to 2014
Averages 1939 to 1942, 1945 to 2014

January
February
March
April
May
June
July
August
September
October
November
December
Miscellaneous

January Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	52	2007	22	-10	1957
2	52	2007	21	-10	1968
3	53	2000	21	-10	2008
4	54	2000	21	-18	1981
5	54	2007*	21	-22	1981
6	56	2007	21	-24	1998
7	50	1995*	21	-13	2014
8	50	2007	21	-16	1968
9	55	1978	20	-25	1968
10	54	2000	20	-20	1982
11	55	1975	20	-18	1982
12	53	1975	20	-17	1982
13	52	2005	20	-15	1981
14	54	2006*	20	-25	1988
15	57	1995	20	-20	1957
16	55	1995	20	-19	1994
17	51	1995	20	-23	1982
18	54	2006*	20	-23	1982
19	54	1996	20	-15	1994
20	50	1986	19	-13	1994
21	49	1974	19	-28	1985
22	49	1959*	19	-16	1970
23	52	1992	19	-16	1976
24	54	1992	19	-14	2005*
25	52	2010	19	-13	2004
26	54	1978*	19	-11	2007
27	52	1996*	19	-17	1994*
28	50	1994	19	-14	2003
29	48	2002	19	-7	2014*
30	50	2002	19	-16	1996
31	55	2013	19	-10	1980*

February Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	51	1951	19	-19	1961
2	52	2008	19	-26	1961
3	52	2006	19	-16	1955
4	50	1972	19	-12	1996
5	50	2006	19	-18	1981
6	46	2008*	19	-10	2007*
7	50	1951	20	-11	1993
8	46	1965	20	-24	1963
9	46	1950	20	-11	1951
10	50	1990	20	-13	1979
11	53	1960	20	-23	1979
12	50	1999*	20	-24	1979
13	52	2008	20	-18	1967
14	52	2000	20	-23	1979
15	49	1984*	20	-18	1979
16	54	1949	20	-15	2003*
17	48	1993	20	-22	1979
18	53	1981	21	-23	1979
19	45	1981*	21	-13	2007
20	50	1991*	21	-26	1950
21	52	2002	21	-33	1950
22	52	1974	21	-12	1963
23	49	1990	21	-13	1999
24	50	1985	21	-6	2011
25	50	1965	22	-16	1982
26	52	1961	22	-17	1970
27	55	1957	22	-13	1950
28	48	2009*	22	-11	2014*

March Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	47	1955	22	-17	1980
2	57	1991	23	-18	1980
3	52	2002	23	-20	1980
4	54	1999	23	-10	1950
5	52	2008	23	-7	1944
6	54	2004	23	-21	2007
7	52	2011	24	-17	2007
8	57	2008	24	-12	1986
9	57	1998	24	-14	2007
10	54	2002*	24	-8	1995*
11	52	1967	25	-7	1960
12	53	1967	25	-13	1980
13	53	1977	25	-13	1980
14	53	1977	25	-7	2014
15	51	1977	26	-2	1993
16	54	1990	26	-5	1992
17	57	1973	26	-5	2014
18	54	1990	27	-8	1967
19	52	2012	27	-11	1967
20	53	2012	27	0	1949
21	56	2012	27	-8	1986
22	54	2012	28	-11	1988
23	54	2012*	28	-4	2004*
24	57	1979	28	-1	2009
25	52	1988	29	-4	1983
26	52	1949	29	-4	2014
27	61	1949	29	-5	2012
28	55	1950	30	-4	1996
29	55	2003*	30	-2	1974
30	57	2003	30	1	1950
31	56	1987	31	2	1957

April Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	53	2006*	31	6	1969
2	54	2008*	31	2	2008
3	55	2002	32	1	1954
4	57	1974	32	3	1954
5	55	1989*	32	-1	1995
6	55	1985	33	-2	2004
7	55	1997	33	1	2004
8	59	1954	33	5	1982*
9	59	1991	34	7	1982
10	57	2001*	34	2	1989
11	54	2011*	34	2	1989
12	57	1981	35	5	1991*
13	57	2002	35	3	1992
14	58	2004	35	4	1992
15	60	2002	36	3	1953
16	60	2002*	36	10	1981
17	61	2002	37	10	1980
18	63	2002	37	9	1990
19	63	2002	37	9	1990
20	62	2002	38	13	1989*
21	60	1987	38	10	1981
22	58	1987	38	4	1989
23	61	1954	39	13	1994
24	59	2011*	39	9	2014
25	59	1961	40	11	2003
26	63	1953	40	16	1972
27	61	1994	40	12	1966
28	62	1994*	41	16	2001
29	61	1981*	41	9	2012
30	66	1981	42	9	2012

May Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	62	1994	42	9	1978
2	63	2010*	42	18	2006*
3	66	2010	43	14	1986
4	59	2010*	43	11	1986
5	64	2000*	43	19	2002*
6	66	1949	44	19	1995*
7	64	1977*	44	14	1970
8	66	2000	45	6	1950
9	64	2000	45	20	1985
10	70	1965	45	16	1962
11	64	1985	46	18	1962
12	67	2004	46	13	2005
13	72	1985	46	15	2005
14	65	1991*	47	17	2001
15	65	2004	47	21	1971
16	66	2004	48	26	1984
17	67	1991	48	24	1956*
18	70	1991	48	22	2003*
19	71	1964	49	24	1944
20	69	1959	49	24	2002
21	68	1959	49	27	2002
22	68	1996	50	30	1981
23	68	1987	50	26	1971
24	68	1955	50	18	1956
25	69	1955	51	23	1956
26	70	1965	51	25	1996
27	70	1981	52	28	1980
28	72	1991	52	26	2008
29	71	2012	52	29	2008
30	69	1991*	53	25	1961
31	70	1991	53	28	2001

June Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	72	2013	53	23	2000
2	69	1989*	54	31	1993
3	72	2010	54	24	2011
4	71	1981	54	26	1993
5	70	1981	54	28	1964
6	70	2010*	55	21	1958
7	69	1999	55	28	1958
8	75	1986	55	29	2002
9	72	1973	56	28	1987
10	70	2008*	56	35	1988
11	70	2005*	56	32	1972*
12	73	1985	57	33	1972
13	72	1997*	57	35	2008*
14	72	1994*	57	27	1958
15	73	1994*	57	29	1978
16	72	2001*	58	33	1964*
17	73	2000*	58	34	1958
18	77	1994	58	34	1956
19	74	1957	58	38	2011*
20	72	2012*	59	39	2004
21	75	1949	59	37	1968
22	73	1997*	59	38	1963
23	72	2001*	59	32	2007
24	71	2013*	60	34	2007
25	74	1949	60	36	1986*
26	74	1952	60	33	1979
27	74	2010*	60	38	2012
28	76	2010	60	37	1995
29	75	1959	61	44	1995
30	76	1959	61	36	1988

July Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	74	2013*	61	37	1986
2	76	1983	61	34	1957
3	74	2014*	61	36	1978
4	76	1999*	62	36	1963
5	75	1999*	62	40	1979
6	76	1994*	62	42	1979
7	76	1994	62	45	2000*
8	76	1994	62	44	2000
9	77	1994*	62	41	1963
10	75	1994*	62	43	2002
11	73	2013*	63	41	2002
12	75	1994	63	37	2009
13	75	2010*	63	44	2009
14	75	2013*	63	43	2011
15	76	1995*	63	48	2009*
16	76	1982	63	44	1954
17	75	1998	63	46	1958
18	77	1982	63	50	1993*
19	78	2013	63	46	1955
20	77	1994*	63	44	1965
21	76	1972	64	44	1966
22	79	1949	64	43	1999
23	77	1978	64	44	1977
24	76	1987*	64	44	1991
25	77	1995*	64	44	1953
26	78	1995*	64	46	1977
27	78	1970*	64	44	2001*
28	78	1957	64	45	1977
29	76	1995*	64	42	1997
30	75	2004*	64	44	1997
31	76	1979	64	45	1987*

August Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	78	1979	64	42	1953
2	78	1979*	64	40	1959
3	78	1979	64	43	1959
4	77	2012*	64	42	1964
5	80	1979	64	43	2013
6	77	1980*	64	38	1964
7	77	1978	64	42	1994
8	77	1978	64	46	2002*
9	76	2001	64	37	1999
10	76	2001*	63	39	1964
11	77	2012*	63	41	2006
12	76	1988	63	38	2006
13	76	2005*	63	41	1957
14	76	2005*	63	41	1961
15	76	1978	63	43	1964
16	78	1978	63	45	1972
17	78	1978	63	41	1957*
18	76	1986*	63	38	1981
19	76	1965	63	39	1977
20	76	1968	62	39	1977*
21	76	2009	62	42	1982*
22	76	2003	62	39	1982
23	76	1966	62	38	1957*
24	74	1977*	62	37	2003*
25	76	1979	62	37	1989
26	78	1947	62	39	1963
27	77	1979	61	43	1954
28	79	1993	61	39	1986*
29	76	1979	61	35	1982
30	77	1979	61	37	1965
31	76	1979*	61	35	1996

September Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	75	1950	60	35	1991
2	76	2000*	60	38	1994
3	77	1979	60	40	1997*
4	74	2012*	60	35	1997
5	76	1979*	60	37	2000
6	77	2008	59	36	1962
7	74	2012*	59	32	1962
8	74	2012	59	28	1996
9	76	1959	59	30	1952
10	74	1959	58	32	1973
11	74	2013	58	26	1987
12	74	1961	58	30	1943
13	77	1947	58	32	1985
14	75	1979*	57	31	1953
15	76	1947	57	33	1988*
16	74	1991	57	30	1948
17	74	1991	57	26	1959
18	73	2004*	56	32	1990
19	73	2003*	56	30	1979
20	73	1989*	56	30	1993
21	73	1989*	55	25	1962
22	74	1965	55	31	1948
23	73	2002	55	24	1947
24	71	1985*	54	25	1963
25	73	1970	54	22	1998
26	71	1977*	54	26	1943
27	71	1972*	54	22	1957
28	72	2002	53	24	1957
29	71	1974*	53	28	2000*
30	72	2010	53	22	1992

October Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	72	2010	52	21	1998
2	70	2002*	52	22	1998
3	70	2002	52	24	1957
4	71	1995	51	24	1965*
5	70	2002*	51	21	1965
6	70	1995	50	15	1984
7	70	2013*	50	21	2001
8	72	2005	50	21	1964
9	72	2005	49	23	2010*
10	70	1959	49	18	1993*
11	67	1990*	49	18	1993*
12	68	1990	48	23	1957
13	71	1983	48	19	2006
14	70	1990*	48	23	1953
15	70	1995	47	19	1996
16	70	2014	47	19	1994
17	66	1947	46	20	1978*
18	68	1975*	46	20	1970
19	68	2007*	46	15	1959
20	69	1989	45	11	1952
21	69	1995	45	15	1952
22	70	1984	45	17	1997
23	66	1984	44	10	1969
24	65	2007*	44	13	1969
25	66	1975	43	10	1947
26	66	1975	43	18	1987*
27	66	2010	43	14	1990
28	68	1984	42	14	1985
29	68	1984	42	11	1985
30	63	1947	42	12	1991
31	64	1949	41	16	1988

November Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	65	1956	41	18	1965
2	65	1971	40	12	1965
3	65	1999	40	14	1965
4	67	1982	40	14	2013
5	67	1982	39	14	1951
6	64	1948	39	12	1987
7	63	1951*	38	-1	2002
8	64	1996	38	-1	2003
9	64	1996	38	2	1971
10	65	1948	37	6	1956
11	65	1977	37	8	1957
12	61	2002	37	6	2010
13	58	2012	36	4	1986
14	62	1959	36	2	1986
15	63	2008	35	6	2003
16	63	1989	35	2	1979
17	63	2006	35	7	1979
18	61	1978	34	-1	1959
19	62	1957	34	5	2014
20	63	1948	34	6	2013*
21	59	1991	33	-8	1987
22	58	1994*	33	-5	1987
23	58	1992*	33	3	1987
24	60	2014	32	-7	2013
25	58	2004	32	-2	2005
26	60	1979*	32	1	1978
27	61	2013	31	2	1978
28	60	1984	31	2	1951
29	61	2003	31	4	1989
30	61	2001	30	-1	1958

December Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	61	2006	30	-6	2007
2	59	2006	30	-5	2007
3	63	2009	29	-25	1976
4	59	1990	29	-19	1976
5	58	1973	29	-12	1980
6	59	1982	28	2	2007*
7	57	1953	28	-2	1989
8	54	1951*	28	-3	2006*
9	54	1973*	27	-28	1976
10	57	2008	27	-9	1968
11	57	1966	27	-17	1943
12	57	2008	27	-9	1988
13	53	1959	26	-11	1960
14	53	1991*	26	-11	1976
15	54	1975	26	-15	1943
16	54	1982	25	-8	1943
17	57	2000	25	-17	1942
18	53	1954	25	-7	1985
19	50	1990*	25	-8	2009
20	55	2002	24	-17	1942
21	56	1999*	24	-25	1942
22	56	1990	24	-8	1989
23	55	2013*	24	-12	1943
24	56	1990	23	-8	1943
25	56	2014	23	-27	1980
26	53	1964*	23	-21	1980
27	55	1949	23	-11	1993
28	55	1949	23	-7	1993
29	52	1983	22	-10	1943
30	52	1948	22	-18	1962
31	51	1948	22	-23	1962

Earliest/Latest
55
	Earliest 1st	Jan 6 2007
	Average 1st	April 9
	Latest 1st	May 20 1967

	Earliest Last	Nov 2 1997
	Average Last	November 30
	Latest Last	December 28 1949

60
	Earliest 1st	Mar 27 1949
	Average 1st	May 11
	Latest 1st	June 5 1967

	Earliest Last	September 30 1954
	Average Last	November 4
	Latest Last	December 3 2009

65
	Earliest 1st	April 30 1981
	Average 1st	May 28
	Latest 1st	June 21 1977

	Earliest Last	September 11 1950
	Average Last	October 11
	Latest Last	November 11 1977

70
	Earliest 1st	May 10 1965
	Average 1st	June 16
	Latest 1st	Aug 2 1974

	Earliest Last	August 16 1981
	Average Last	September 22
	Latest Last	October 22 1984

All Time Extremes:
Highest		Lowest
80	Aug 5 1979	-33	Feb 21 1950
79	Aug 28 1993 July 22 1949	-28	Jan 21 1985 Dec 9 1976
78	July 19 2013 15 earlier dates	-27	Dec 25 1980
		-26	Feb 2 1961 Feb 20 1950

Period of Record:
Extremes 1942 to 2014
Averages 1949 to 2014

January
February
March
April
May
June
July
August
September
October
November
December
Miscellaneous

January Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	48	1979	18	-17	1957
2	53	1979	18	-23	1957
3	53	1979	18	-23	1957
4	56	2000	17	-26	1981
5	56	1993	17	-21	1981
6	61	2007	17	-21	1959
7	49	1998	17	-16	1973
8	47	2008	17	-21	1968
9	55	1978	17	-32	1968
10	45	2000	17	-17	1982*
11	59	1975	16	-22	1968
12	59	1975	16	-30	1968
13	52	1972	16	-24	1981
14	57	2005	16	-31	1988
15	60	1995	16	-40	1957
16	58	1995	16	-25	2004
17	57	1995	16	-25	1982
18	57	2006	16	-29	1957
19	56	1996	16	-25	1971
20	51	1996	16	-25	1971
21	46	1954	16	-22	1971
22	56	1959	16	-30	1984
23	54	1957	16	-30	1976
24	55	1999	16	-25	1957
25	56	2010	16	-19	1961
26	55	1950	16	-14	2007
27	56	1950	16	-21	1994
28	51	1994	16	-18	1961
29	48	2002*	16	-17	1961
30	52	2013	16	-22	1993
31	57	2013	16	-23	1993

February Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	45	1953	16	-20	1961
2	49	1988*	16	-30	1959
3	54	2006	16	-18	1955
4	45	1984*	16	-17	1965
5	45	2006	16	-15	1996
6	46	1991	16	-20	1995
7	50	1951	16	-24	1995
8	46	1965	16	-26	1967
9	46	1950	16	-19	1959
10	51	1990	16	-22	1979
11	56	1981*	16	-28	1979
12	56	1981	16	-25	1979
13	54	1999	17	-17	1967*
14	46	1989	17	-25	1958
15	49	1984	17	-19	1987*
16	52	1954	17	-18	1979
17	47	2006	17	-23	1979
18	56	2008	17	-25	1979
19	50	1981	17	-14	2007
20	53	1981	18	-20	1950
21	55	1989*	18	-30	1950
22	54	1997*	18	-14	1963
23	56	1990	18	-20	1972
24	49	1990	18	-6	1972
25	48	1984	18	-10	1982
26	55	1957	19	-13	1970
27	55	1957	19	-21	1950
28	52	1997	19	-21	1950

March Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	47	1954	19	-24	1980
2	61	1991	19	-18	1980
3	55	2002*	20	-15	2003*
4	53	1999*	20	-16	1950
5	54	1964	20	-3	1957
6	54	2004*	20	-20	2007
7	51	1974	21	-16	2007
8	58	1995	21	-12	1986
9	58	1995	21	-14	2007
10	57	2002	21	-11	1960
11	54	1992	22	-16	1953
12	54	2013	22	-13	1984
13	57	1990	22	-11	1984*
14	55	1977	22	-2	1981
15	55	1990	23	-14	1993
16	60	1990	23	-5	1980
17	61	1973	23	-6	2014
18	58	1990	24	-8	1967
19	54	1983	24	-15	1967
20	54	2012	24	-4	1949
21	57	2012	25	-10	1988
22	57	2012	25	-6	2004*
23	56	1949	25	-5	1959
24	56	1988	26	-4	2014
25	56	1966	26	-7	1983
26	57	1949	26	-7	1983
27	61	1949	27	-8	2012
28	59	1949	27	-16	1982
29	61	2003	27	-7	1982
30	60	2003	28	-2	2007
31	59	1977	28	-5	1957

April Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	57	1998	28	2	1965
2	57	1967	29	2	2008
3	57	2009*	29	-3	2008
4	61	1974	29	-8	1954
5	58	1950	30	-5	1995
6	56	1969	30	0	2013
7	57	1997	30	1	2002
8	57	1954	31	3	1982*
9	58	2000*	31	2	1982*
10	60	1993	32	-1	1997
11	57	1954	32	-3	2005
12	57	1954	32	1	1976
13	61	2002	33	3	1992
14	59	1955	33	5	1992
15	61	2014*	33	2	1992
16	61	2002*	34	5	1992
17	62	2002	34	3	2003
18	63	2002	35	3	2003
19	65	2002	35	10	1990*
20	63	2013	35	10	1989*
21	61	1957	36	6	1981*
22	60	1992	36	3	1989
23	60	1954	37	0	1989
24	59	2001*	37	12	2014
25	59	1961	37	7	2004
26	62	1957	38	12	1989
27	68	1957	38	10	1966
28	67	1957	39	7	2012
29	62	1962	39	5	2012
30	63	1996	39	7	2012

May Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	62	1994	40	14	2008
2	66	2010	40	10	1974
3	68	2010	41	12	1990
4	59	2012*	41	13	1986
5	64	2000	41	16	1969
6	67	1949	42	15	1995
7	65	2000	42	9	2001
8	65	2000	43	5	1950
9	72	2000	43	11	1962
10	70	2000	43	12	1962
11	66	1957	44	18	2010
12	68	1959	44	3	2005
13	67	1959	44	3	2005
14	66	1961	45	17	2005
15	70	1957	45	19	2001
16	69	1957	46	19	1987*
17	68	1991	46	20	1955
18	67	1991	46	21	1983
19	68	1962	47	19	1981
20	68	1949	47	23	2002*
21	70	2013*	47	21	1967
22	68	1959	48	28	1967
23	68	2013*	48	24	1971
24	71	1975	49	12	1956
25	69	1975	49	13	1956
26	70	1957	49	24	1954
27	71	1991	50	25	1969
28	71	1991*	50	24	2008
29	72	2012	50	28	2008*
30	71	1987	51	22	1961
31	72	1991*	51	22	1961

June Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	72	1989*	51	25	2009
2	70	2013*	52	27	1953
3	72	2010	52	25	1953
4	70	1960*	52	30	2011
5	72	2002	53	29	1964
6	71	2010*	53	31	1964
7	73	2008*	53	27	1987
8	73	2008	54	30	1987
9	74	2008	54	28	1983
10	74	2008	54	32	1971
11	78	2005	54	29	1985
12	77	2005	55	32	1972
13	75	2005	55	34	1979
14	74	1994	55	31	1958
15	74	1994*	56	32	1973
16	74	1981	56	30	1964*
17	76	1952	56	32	2002
18	77	1994	56	27	1956*
19	77	1994	57	36	2004
20	75	1964	57	36	2004
21	75	1949	57	38	1968
22	74	1973	57	34	1950
23	74	1990	58	36	2007
24	73	1998*	58	32	2003
25	75	1949	58	33	1986*
26	75	1952*	58	30	1979
27	80	1952	58	42	1995*
28	76	1969	59	39	1995
29	78	1959	59	39	2007
30	77	1959	59	38	1975

July Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	76	1971	59	35	1957
2	75	1963	59	34	1957
3	78	2014	60	39	1962*
4	75	2002*	60	39	1962
5	77	2002	60	38	1979
6	75	1999	60	36	1965
7	75	2013*	60	40	2000
8	78	1994	60	37	1969
9	79	1994	61	40	1953
10	76	2013	61	41	1983
11	75	2013*	61	41	2002
12	75	1987	61	40	1971
13	76	1977	61	44	2009
14	74	1995*	61	45	2009
15	77	1997	61	41	1954
16	75	1997*	61	40	1954
17	75	2005	61	46	1993*
18	77	2005	61	43	1956
19	77	2005*	62	44	1997
20	76	2005	62	44	1965
21	78	1972	62	45	1966*
22	77	1994*	62	44	1970
23	76	1991*	62	43	1985*
24	76	1975*	62	45	1985
25	76	1995	62	45	1976*
26	78	1995	62	45	1976
27	81	2005	62	42	2001
28	76	1949	62	45	1971
29	76	1995	62	43	1997*
30	74	2009*	62	43	1956
31	75	1959	62	45	1964*

August Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	77	2006	62	41	1953
2	79	1975	62	36	1959
3	76	2003*	62	42	1959*
4	75	2006*	62	47	1976*
5	75	2012*	62	42	2013
6	76	1978	62	42	1951
7	77	1955	62	39	1957
8	76	2007	62	45	2009*
9	74	2013*	61	37	1999
10	75	2001*	61	39	1964
11	79	1975	61	39	2006
12	76	1988	61	38	2006
13	75	2003*	61	38	1957
14	77	1988	61	40	1983
15	77	1951	61	42	1979
16	77	1959	61	41	1968
17	77	1977	61	38	1957
18	82	2002	60	41	1981*
19	77	2002	60	42	1988
20	75	2004*	60	37	1995
21	75	2009	60	38	1982
22	74	2003*	60	35	1982
23	74	1976	60	36	1987
24	74	1972	60	36	1987
25	75	1972	59	37	1989
26	74	2007*	59	32	1996
27	73	1999*	59	41	1954
28	75	2004*	59	34	1957
29	75	2004*	59	31	1982
30	74	2004*	58	33	1965
31	76	2005	58	35	1965

September Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	75	1959	58	32	1970
2	75	1959	58	35	2007
3	79	1993	58	30	1998
4	76	1993	57	39	1997
5	74	2012*	57	34	2000
6	76	2008	57	36	2013
7	73	1999	57	33	1984
8	74	1959	56	32	1956
9	75	2004	56	32	1956
10	73	1992*	56	34	1995
11	75	2013	56	33	1985
12	72	2013*	55	34	2002*
13	72	2013	55	32	1985
14	74	2008	55	29	1986
15	73	2008*	54	32	1983*
16	75	1991	54	30	2011
17	75	1991	54	27	1959
18	71	1972	54	32	1990*
19	73	2003	53	32	2014*
20	72	1955	53	27	1979
21	74	1965	53	29	1973*
22	74	1965	52	32	1962
23	72	2002*	52	27	1979
24	71	1970	52	27	1974
25	73	1970	51	28	1950
26	74	1958	51	22	1957
27	71	1958	51	22	1984*
28	72	2002	50	23	1957
29	72	1959	50	21	1957
30	72	2010	50	19	1981

October Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	74	2010	49	19	1981
2	71	1959	49	28	1998*
3	67	2002*	49	27	1975
4	68	1954	48	21	1965
5	70	2002	48	16	1984
6	69	1959	47	13	1984
7	70	2005	47	17	1984
8	72	2005	47	20	1964
9	71	2005	46	19	2010
10	69	1990*	46	17	1993*
11	67	1949	46	17	1964
12	68	1990	45	15	1963
13	71	1990	45	19	2012*
14	69	1990	44	19	2002
15	69	2014*	44	16	1996*
16	70	1954	44	17	1994
17	61	1992*	43	18	1994
18	64	1967	43	13	1974
19	70	2007	42	12	1974
20	70	2007	42	10	1972
21	68	1995	42	13	1974*
22	63	1965	41	16	1974
23	62	2007*	41	9	1969
24	67	1959	40	8	1969
25	65	2009*	40	16	1978
26	63	2008*	40	14	2002*
27	67	2010	39	12	2002
28	67	1995	39	13	1974
29	62	1984	39	11	1991
30	61	2012	38	3	2001
31	63	2009	38	5	2001

November Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	66	1956	37	15	1985
2	67	1971	37	7	1965
3	65	1999*	37	11	2013*
4	66	1982	36	6	1989
5	66	1982	36	8	1965
6	61	1988*	35	7	1987
7	60	1994	35	2	2002
8	65	1996	35	5	2003*
9	65	1996	34	4	2003
10	65	1975	34	-2	1956
11	65	1975	33	3	1956
12	60	1995	33	6	2010
13	59	1992	33	0	1986
14	63	1959	32	0	1986
15	66	2008	32	0	1996
16	64	2008	31	-2	1996
17	65	2006	31	5	1967
18	60	1987	31	-1	1959
19	64	1957	30	2	2014
20	63	1957	30	6	1986
21	61	1954	30	-5	1987
22	61	1953	29	-5	1987
23	63	1999	29	1	1987
24	61	2014*	29	-4	1956
25	61	2004*	28	-1	2013*
26	61	1979	28	1	1978
27	61	1999*	27	-3	1957
28	60	1993*	27	4	1974*
29	63	2003	27	-8	1955
30	61	2011*	26	1	1958

December Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	63	2006	26	-7	2007
2	63	2006	26	-7	2007
3	61	2009	25	-17	1976
4	58	1950	25	-12	1976
5	58	1973	25	-8	1980
6	60	1982	25	-4	1992
7	61	1953	24	-4	1989
8	56	1951	24	-10	1964
9	53	1963	24	-10	2002
10	59	1953	23	-11	1968
11	60	1966	23	-10	1977*
12	54	2010	23	-12	1988
13	56	1959	22	-12	1976
14	55	1991	22	-18	1976
15	51	2008	22	-7	1961
16	54	1982	22	-10	1961
17	61	2000	21	-9	1979
18	54	1954	21	-11	1980
19	49	1990*	21	-7	2009
20	57	1957	21	-21	1955
21	58	1957	20	-24	1955
22	58	2013	20	-17	1955
23	58	1990	20	-12	1989
24	55	2003	20	-12	1989
25	55	1964	19	-34	1980
26	57	1964	19	-29	1980
27	57	1964*	19	-21	1968
28	56	1949	19	-12	1960
29	54	1982*	19	-8	1999*
30	52	1984	18	-24	1956
31	52	1990	18	-29	1962

Earliest/Latest
55
	Earliest 1st	Jan 4 2000, 1950
	Average 1st	March 15
	Latest 1st	May 19 1971

	Earliest Last	Oct 23 1965
	Average Last	November 28
	Latest Last	December 28 1949

60
	Earliest 1st	January 6 2007
	Average 1st	April 29
	Latest 1st	June 6 1967

	Earliest Last	September 20 1963
	Average Last	November 8
	Latest Last	December 17 2000

65
	Earliest 1st	April 19 2002
	Average 1st	May 25
	Latest 1st	June 18 1985

	Earliest Last	September 13 1963
	Average Last	October 10
	Latest Last	November 17 2006

70
	Earliest 1st	May 9 2000
	Average 1st	June 11
	Latest 1st	July 14 1985

	Earliest Last	August 12 1981
	Average Last	September 15
	Latest Last	October 20 2007

All Time Extremes:
Highest		Lowest
82	August 18 2002	-40	Jan 15 1957
81	July 27 2005	-34	Dec 25 1980
80	June 27 1952	-32	Jan 9 1968
79	July 9 1994 Sept 3 1993 Aug 11 1975 Aug 2 1975	-31	Jan 14 1988
78	June 11 2005 5 earlier dates	-30	Jan 22 1984 Jan 23 1976 Jan 12 1968 Feb 2 1959 Feb 21 1950

Period of Record:
Extremes 1949 to 2014
Averages 1949 to 2014

January
February
March
April
May
June
July
August
September
October
November
December
Miscellaneous

January Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	52	1945	14	-21	1964
2	53	1942	14	-29	1968
3	52	2000*	14	-25	1981
4	55	1950	14	-28	1981
5	55	1993*	14	-28	1981
6	59	2007	14	-29	1972
7	50	1946	14	-21	1994
8	46	2008	13	-28	1942
9	51	1978	13	-31	1968
10	48	1939	13	-28	1982
11	54	1983	13	-38	1976
12	54	1980	13	-30	1968
13	44	1995	13	-29	1981
14	55	2006	13	-35	1957
15	58	1995	13	-36	1957
16	58	1995	13	-32	1957
17	59	1995	13	-32	1982
18	54	2006	12	-42	1957
19	53	1996	12	-38	1976
20	53	1996	12	-33	1971
21	49	1954	12	-28	1994
22	51	1959	12	-35	1984
23	51	1957	12	-29	1976
24	50	1996*	12	-32	1961
25	52	2010	12	-29	1945
26	52	2010	12	-34	1948
27	51	1986	12	-31	1994
28	49	1996	12	-22	1971
29	38	1994*	12	-25	1962
30	45	1950	12	-32	1948
31	56	2013	12	-24	1973

February Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	45	1988	12	-37	1971
2	48	1981*	12	-29	1971
3	51	1983	12	-40	1971
4	46	1982	12	-36	1971
5	45	2006	13	-20	1978*
6	41	1991*	13	-39	1948
7	47	1951	13	-26	1948
8	47	1951	13	-27	1950
9	44	1965	13	-22	1948*
10	45	2001	13	-32	1975*
11	55	1981	13	-33	1948
12	56	1981	13	-28	1979
13	50	1999	13	-28	1967
14	53	1946	13	-25	1968
15	43	1984	14	-63	1943
16	44	1984	14	-50	1943
17	47	2006	14	-27	1963
18	52	2008	14	-24	1979
19	44	1961	14	-20	1979*
20	49	1981	14	-31	1966
21	55	1953	14	-32	1950
22	54	1997	15	-20	1968*
23	53	1990	15	-26	1972
24	47	1985	15	-15	1972*
25	51	1985	15	-15	1982
26	49	1957	15	-21	1950
27	50	1957	16	-19	1963
28	45	2009	16	-19	1964

March Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	47	1999	16	-18	1982*
2	59	1991	16	-19	1944
3	55	1991	16	-27	1950
4	51	1974	17	-32	1950
5	56	1964	17	-24	1948
6	51	1964	17	-26	1948
7	49	1979*	17	-20	2007
8	56	1995	18	-18	2007
9	56	1995*	18	-22	1943
10	56	2002	18	-20	1972
11	53	1992	19	-11	1987
12	49	1973	19	-15	1984
13	53	1990	19	-18	1948
14	60	1946	19	-13	1948
15	51	1990	20	-17	1993
16	48	1948	20	-13	1980
17	60	1990	20	-12	1967
18	59	1990	21	-17	1967
19	55	1986	21	-16	1967
20	55	1945	21	-8	1949
21	53	1995	22	-13	1988
22	54	2012*	22	-9	2004*
23	55	1949	22	-9	1959
24	55	1953	23	-3	2014*
25	52	1979*	23	-11	1974
26	53	1949	23	-10	1960
27	56	1948	24	-8	2012
28	55	2000*	24	-10	1974
29	56	2003	24	-15	1974
30	53	2003	25	-1	1983
31	59	1987	25	-5	2007

April Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	59	1987	25	-7	1950
2	57	1945	26	1	1995
3	58	1945	26	-5	1954
4	58	2000	26	-5	1954
5	57	1974*	27	-8	1995
6	57	1989	27	-7	1995
7	54	2010*	28	-8	1943
8	64	1991	28	2	2002
9	64	1991	28	-1	1997
10	61	1945	29	-8	1997
11	56	2011*	29	-2	1997
12	60	1947	29	-3	1976
13	63	2002	30	-6	1976
14	62	2002*	30	-2	1992
15	61	2014	31	-6	1992
16	62	1994	31	1	1992
17	62	1945	31	-5	1985
18	62	1945	32	1	1985
19	61	2013	32	3	1961
20	65	1987	33	2	1961
21	59	1957	33	0	1981
22	62	1992	33	-1	1981
23	62	1977	34	-1	1989
24	59	2005*	34	0	1962
25	58	1946	35	-4	1949
26	57	1990	35	7	1966
27	62	2011*	36	0	1966
28	65	2011	36	1	1947
29	62	1962	36	3	2012
30	61	1947	37	6	1978

May Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	59	1996*	37	7	1978
2	66	2010	38	8	1974
3	66	2010	38	11	2007*
4	63	1942	38	12	1980
5	64	2001*	39	11	1969*
6	66	1949	39	13	1995
7	61	1953	40	7	1995
8	63	2000	40	1	1950
9	66	2000	40	2	1962
10	64	1957	41	3	1962
11	66	2007	41	6	1962
12	68	1959	42	10	1962
13	67	1959	42	11	2005
14	65	1985	42	13	2005
15	68	2004	43	18	1994
16	66	1945	43	18	1957
17	68	1991	44	15	1961
18	68	1991	44	14	1944
19	66	1986	44	16	1944
20	65	1999*	45	18	1956
21	66	1975	45	19	1944
22	68	1941	45	24	2002*
23	68	2013	46	25	1971
24	69	1975	46	13	1956
25	68	1991	47	18	1956
26	66	2012*	47	22	1956
27	67	1991	47	18	1980*
28	72	1939	48	19	1994
29	68	1973*	48	25	2004
30	68	1959	48	20	1961
31	72	1975	49	20	1961

June Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	74	1975	49	24	2009
2	70	2006	49	22	1953
3	70	2010*	50	24	1986
4	67	1995*	50	26	1998
5	69	1966*	50	25	1971
6	70	1966	51	23	1971
7	72	2008	51	26	1998
8	72	1986	51	31	1962
9	70	2008	52	24	1980
10	72	2008*	52	24	1957
11	73	2005	52	24	2001
12	74	2005	52	30	1998
13	73	2005*	53	30	1979
14	76	1942	53	25	1958
15	76	1945	53	25	1978
16	72	1981*	54	26	1964
17	75	1952	54	28	1964
18	76	1994	54	28	1950
19	73	1994*	54	30	2003
20	73	1964	55	30	2001
21	73	2012*	55	32	1940
22	71	2012*	55	29	1940
23	73	1975	55	30	1940
24	75	1975	56	33	1953
25	76	1945	56	32	1979
26	78	1952	56	30	2002
27	79	2003	56	36	1995
28	76	1969	56	33	1980
29	79	1959*	57	33	1988
30	75	1959	57	31	1978

July Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	74	1941	57	31	1961
2	76	2002	57	31	1962
3	77	2002	57	32	1939
4	76	2002	58	35	1962
5	75	1999	58	35	1979*
6	76	1994	58	36	1965
7	74	1994*	58	35	1965
8	75	1994	58	38	1969
9	74	1993	58	39	1983
10	75	1988	58	37	1942
11	75	1944	59	37	1978*
12	77	1943	59	35	1978
13	76	1975	59	35	1939
14	75	1975	59	42	1940
15	76	1972	59	39	1988
16	77	1975	59	37	1946
17	75	1975	59	41	1954
18	76	1975	59	41	1998
19	77	2005	59	42	1939
20	74	1975	59	40	1965
21	78	1972	59	40	1974*
22	78	1972	59	38	1977
23	74	1994	59	36	1985
24	76	1961	60	39	1985
25	75	1961	60	42	1953
26	75	1995*	60	37	1977
27	74	2005	60	36	1977
28	75	2006	60	36	1977
29	75	1995	60	41	1997*
30	76	1940	60	38	1956
31	78	1940	60	34	1964

August Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	78	1970	60	35	1964
2	75	2006*	60	37	1959
3	75	2006*	59	37	1953
4	76	1995*	59	37	1964
5	76	1989	59	33	2013
6	75	1983	59	37	1979
7	74	2000	59	36	1950
8	77	1947	59	42	2010*
9	73	2013*	59	36	1979
10	74	1951	59	37	1964
11	77	1988	59	38	1968
12	76	1988	59	33	1950
13	74	2003	59	35	1950
14	77	1988	59	31	1961
15	75	1988*	59	39	1950
16	77	2002	58	38	1964
17	75	1995	58	36	1979*
18	74	1955	58	37	1962
19	73	1940	58	35	1968
20	72	2004*	58	36	1949
21	79	1939	58	35	1982*
22	77	1976*	58	30	2001
23	77	1976	57	36	1987
24	71	1998*	57	34	1987
25	75	1972	57	28	1940
26	76	1972	57	32	1989
27	74	1948	57	33	1954
28	73	1992*	56	35	1986*
29	73	2004*	56	31	1982
30	73	1960*	56	30	1965
31	75	2005	56	28	1965

September Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	74	1961*	56	31	1970
2	76	1956	55	32	1970
3	73	2014*	55	35	1970*
4	77	1970	55	33	2007*
5	74	1961	55	32	1963
6	74	1943	54	31	2000
7	73	1943	54	32	1984*
8	73	1959	54	28	1978
9	74	1959	54	31	1980*
10	73	1946	53	26	1978
11	75	2013	53	29	1967
12	75	2013	53	27	2002
13	70	1971*	52	26	1941
14	72	2003	52	26	1963
15	72	2005*	52	27	1983*
16	72	1991*	52	24	1964
17	73	1991	51	27	1948
18	70	1942	51	24	1939
19	71	1952	51	24	1993
20	70	2003*	50	22	1941
21	70	2014*	50	25	1962
22	72	1970*	50	27	1955
23	73	1970	49	22	1945
24	70	2011*	49	23	1974*
25	72	1945	49	25	1950
26	70	1972*	48	19	1951
27	70	2007	48	20	1980*
28	70	2010	48	19	1947
29	71	1959	47	22	1942
30	72	2010	47	19	1941

October Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	70	2010	46	20	1947
2	67	1954	46	24	1992
3	65	2002*	46	23	1996
4	66	1983*	45	21	1996*
5	68	2002	45	9	1984
6	65	1991	45	13	1984
7	67	2013*	44	9	1964
8	70	2005	44	14	1964
9	67	1976	43	16	2001*
10	66	1939	43	13	1993
11	65	1954*	43	13	1964
12	66	1990	42	12	1964
13	69	1983	42	15	1964
14	70	1983	42	15	1958
15	66	1995*	41	8	1996
16	68	2014*	41	13	1978
17	67	1943	40	11	1978
18	62	1990	40	8	1939
19	67	2007	40	10	1974
20	67	2007	39	10	1972
21	66	1989	39	10	1972
22	65	1995	38	8	1961
23	61	1981*	38	12	1982
24	62	1979*	38	8	1969
25	64	1951	37	10	1955
26	59	2008*	37	8	1941
27	67	2010	36	6	1974
28	65	1995	36	9	1974
29	64	2003	35	6	1991
30	64	2012	35	2	1991
31	66	1945	35	11	1988

November Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	64	1956	34	14	1988*
2	62	1994*	34	3	1965
3	63	1999*	33	2	2002
4	65	1982	33	8	2002*
5	67	1982	33	5	1986*
6	64	1948	32	4	1987
7	62	1948	32	1	2002
8	63	1996	31	1	2003
9	65	1943	31	1	2003
10	67	1948	31	5	2003*
11	66	1948	30	5	1999*
12	59	1995	30	4	1976
13	61	1945	29	1	1986
14	60	1959*	29	-3	1986
15	63	2008	29	-4	1942
16	63	2008*	28	1	1996*
17	63	2006	28	-2	1967
18	58	2013*	28	2	2014
19	59	1957	27	2	2014
20	62	1957	27	-1	1986
21	61	1954	26	-3	1987
22	58	1953	26	-1	1987*
23	63	1953	26	-2	1972*
24	60	2014	25	-8	1989
25	61	1953	25	-11	2013
26	60	1979	25	-2	1993*
27	62	1979	24	-9	1957
28	59	1993	24	-4	1957
29	61	2003	24	-9	1940
30	61	1963	23	-4	2012

December Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	61	2006	23	-7	2007*
2	54	1996	22	-13	1967
3	57	2009	22	-18	1976
4	56	1950	22	-20	1940
5	56	1973*	21	-13	1989
6	60	1973	21	-7	2000*
7	55	2011	21	-9	1972
8	54	1974	21	-15	1986
9	54	1974	20	-19	1976
10	55	2008*	20	-20	1949
11	60	1966	20	-17	1977*
12	49	1952	19	-21	1977
13	54	1946	19	-18	1976
14	51	1973	19	-18	1976
15	49	1983	18	-18	1980
16	54	1982	18	-18	1961*
17	56	2000	18	-27	1951
18	56	2000	18	-17	1980
19	52	1954	17	-26	1942
20	55	1957	17	-32	1942
21	57	1957	17	-28	1980
22	55	1990	17	-24	1980
23	59	1990	16	-30	1943
24	55	2004	16	-37	1943
25	53	1964	16	-31	1980
26	56	1964	16	-29	1980
27	55	1964*	16	-24	1968
28	56	1949	15	-23	1951
29	53	1984*	15	-20	1943
30	53	1984	15	-21	1962
31	51	1990*	15	-26	1963

Earliest/Latest
55
	Earliest 1st	Jan 4 1950
	Average 1st	April 7
	Latest 1st	May 27 2008

	Earliest Last	Oct 7 1952
	Average Last	November 17
	Latest Last	December 28 1949

60
	Earliest 1st	Mar 14 1946
	Average 1st	May 9
	Latest 1st	June 12 2009

	Earliest Last	September 22 1978
	Average Last	October 29
	Latest Last	December 11 1966

65
	Earliest 1st	April 20 1987
	Average 1st	May 30
	Latest 1st	June 29 1982

	Earliest Last	September 3 1966
	Average Last	September 30
	Latest Last	November 11 1948

70
	Earliest 1st	May 28 1939
	Average 1st	June 21
	Latest 1st	July 26 2009

	Earliest Last	August 3 1975
	Average Last	September 8
	Latest Last	October 14 1983

All Time Extremes:
Highest		Lowest
79	June 27 2003 June 29 1959 Aug 21 1939	-63	Feb 15 1943
78	July 22 1972 July 21 1972 Aug 1 1970 June 26 1952 July 31 1940	-50	Feb 13 1943
77	July 19 2005 11 earlier dates	-42	Jan 18 1957
		-40	Feb 3 1971
		-39	Feb 6 1948
		-38	Jan 19 1976 Jan 11 1976
		-37	Feb 1 1971 Dec 24 1943

Period of Record:
Extremes 1939 to 2014
Averages 1939 to 2014

January
February
March
April
May
June
July
August
September
October
November
December
Miscellaneous

January Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	56	1973	20	-11	1997
2	58	1979	20	-18	1999
3	56	1979	20	-18	1981
4	58	2000	20	-25	1981
5	58	2000*	20	-24	1981
6	59	2007	19	-24	1959
7	56	1995	19	-14	1973
8	55	1979	19	-20	1968
9	56	1999	19	-27	1968
10	54	2000	19	-25	1982
11	58	2014	19	-24	1982
12	59	1975	19	-22	1981
13	56	1972	19	-16	1981
14	59	2005	18	-24	2004*
15	58	1995	18	-30	1957
16	58	1995	18	-24	2004
17	56	1995	18	-23	1982
18	54	2006	18	-24	1982
19	55	1949	18	-19	1997
20	58	1947	18	-15	1946
21	55	1979*	18	-18	1985
22	57	1959	18	-22	1984
23	55	1973	18	-30	1976
24	57	1999	18	-19	2011
25	55	2010	18	-22	1945
26	57	1990	18	-16	1945
27	58	1974	18	-15	1945
28	54	1976	18	-17	1948
29	53	1950	18	-11	1962*
30	55	2013	18	-27	1948
31	58	2013	18	-18	1948

February Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	54	1982*	18	-18	1961
2	57	1951	18	-24	1961
3	56	1973	18	-22	1955
4	54	1982	18	-22	1978
5	54	2006	18	-16	1996
6	48	2011*	18	-14	1995
7	52	1946	18	-14	1993
8	51	1951	18	-18	1963
9	50	1950	18	-17	1948
10	55	1990	18	-18	1979
11	54	1960	18	-27	1979
12	56	1999	18	-21	1979
13	59	1999	19	-23	1967
14	54	2000	19	-25	1979
15	60	1939	19	-17	1979
16	52	1949	19	-19	2003
17	55	1990	19	-23	1979
18	59	2008	19	-23	1979
19	50	2008	19	-12	2007
20	58	1939	19	-20	1950
21	56	1989*	20	-24	1950
22	55	1976	20	-17	1968
23	56	1974	20	-18	1999*
24	50	1990	20	-4	2011*
25	51	1965	20	-12	1982
26	53	1957	20	-16	1970
27	55	1957	21	-15	1950
28	54	2000	21	-12	2014

March Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	52	1939	21	-19	1980
2	60	1991	21	-18	1944
3	58	1972	21	-18	1980
4	55	2002	22	-16	1950
5	57	1964	22	-18	1948
6	55	2004*	22	-22	2007
7	51	2011*	22	-18	2007
8	59	2008	22	-14	2007
9	59	2008	23	-17	2007
10	58	2002	23	-11	1984
11	53	1992*	23	-15	1953
12	55	1973	23	-14	1984
13	56	1990	24	-11	1984
14	53	2006	24	-5	1981
15	53	1971	24	-11	1993
16	54	2002	25	-10	1980
17	59	1990	25	-9	1961
18	57	1990	25	-11	1967
19	55	1983	25	-14	1967
20	56	1945	26	-9	1949
21	58	1976	26	-11	1988
22	59	1948	26	-5	2002*
23	56	1938	27	-7	1959
24	56	1938	27	-6	2014
25	52	1953	27	-6	1985
26	53	1988*	27	-5	1985*
27	59	1949	28	-7	2014*
28	58	1950	28	-8	1982
29	60	2003*	28	-5	1974
30	58	1977*	29	-3	2007
31	56	1998*	29	0	1946

April Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	57	1962	29	2	1964*
2	56	1970*	30	5	2013
3	58	1977	30	-1	2008
4	60	1974	30	-5	1954*
5	60	1974	31	-7	1995
6	59	1957*	31	-1	2013
7	56	1994	31	4	1982*
8	57	1983*	32	3	1982
9	59	1991	32	4	1997
10	60	1993	33	-7	1948
11	56	1993*	33	-1	1997
12	59	1947*	33	0	1976
13	62	1945	34	2	1992*
14	59	2002	34	1	1992
15	62	2002	34	5	2005
16	62	1994	35	10	2005*
17	64	2002	35	3	1985
18	62	2002	35	6	1985
19	64	2002*	36	7	1986
20	62	1941	36	8	2007
21	63	1992	37	6	1981*
22	63	1977	37	5	1981*
23	61	1954	37	6	1989*
24	59	1987	38	13	2014*
25	58	2001*	38	7	2004
26	63	2011	38	11	1989
27	63	2011*	39	6	1966
28	64	2011	39	4	1993
29	61	2011	40	4	2009
30	63	1996	40	6	2012

May Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	61	1994	40	10	1978
2	63	2004	41	7	1974
3	67	2010	41	9	1957*
4	60	2001*	42	14	2007*
5	61	1998*	42	10	1969
6	65	1949	42	11	1969
7	64	2000	43	8	1995
8	67	2000	43	2	1950
9	66	2000	43	4	1962
10	64	1979	44	9	1947
11	65	1979	44	14	1947
12	66	1948	45	12	2005
13	65	1985	45	12	2007*
14	63	1985*	45	12	2007
15	64	2004*	46	22	1971*
16	64	2012	46	19	1959
17	70	1974	46	8	1996
18	67	1991	47	19	1944
19	67	1946	47	18	1944
20	69	1959	47	23	1956
21	67	2013*	48	25	2002*
22	70	1959	48	23	2009
23	68	1959	49	24	1971
24	70	1977	49	12	1956
25	70	1991	49	19	1956
26	70	2012	50	24	1954
27	69	2012*	50	24	1969
28	71	1939	50	27	2008
29	69	2012*	51	30	2004
30	70	2011	51	26	1961
31	70	1959	51	23	1945

June Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	70	2010	52	15	1945
2	69	1989*	52	30	1945
3	69	2010*	52	26	1986
4	70	1989	53	28	1996
5	70	2010	53	28	1971
6	70	2010*	53	27	1987
7	78	1984	53	27	1987
8	74	1984	54	31	1949
9	76	1984	54	30	1980
10	76	1984	54	30	1941
11	74	1984	55	29	1971
12	73	2005*	55	34	2004*
13	76	1984	55	35	1965
14	74	2005	55	28	1958
15	76	1994	56	32	1978
16	74	1956	56	31	1958
17	77	2000	56	34	1958
18	79	1994	57	29	1956
19	79	1977	57	37	1946
20	74	1964	57	32	2004*
21	73	1953	57	35	1986
22	73	1989	58	35	1963
23	74	2001	58	33	1993
24	75	1975*	58	33	1993
25	76	1949	58	36	1986
26	77	1998*	58	36	1986*
27	77	1952	59	37	2014
28	74	2010*	59	37	2014*
29	74	2010*	59	40	1970
30	77	1945	59	40	1978

July Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	77	1941	59	34	1982
2	75	2002	60	37	1992
3	76	2002*	60	32	1996
4	77	2002	60	39	1982
5	78	1999	60	38	1979
6	76	1994	60	38	1965
7	77	1994*	60	38	1965
8	77	1994	61	36	1969
9	77	1994	61	39	1969*
10	76	1987*	61	37	1983
11	74	1988*	61	37	1945
12	73	2013*	61	39	1971
13	76	1977	61	41	1939
14	75	2013*	61	40	1940
15	75	2013*	61	45	1946
16	81	1977	61	39	2000
17	78	1977	62	43	1946
18	75	2006*	62	45	1993*
19	76	2013*	62	46	1997
20	76	2013*	62	43	1965
21	81	1977	62	43	1974*
22	77	1972	62	45	1977*
23	77	1991	62	40	1977
24	76	1990	62	44	2002
25	77	1995	62	43	2002*
26	80	1940	62	37	1946
27	76	1995*	62	41	1983
28	76	1949*	62	42	1999
29	79	1938	62	42	1968
30	77	1988*	62	43	1997
31	75	1971	62	42	1964

August Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	80	1975	62	39	1987
2	77	1975	62	42	1959
3	80	1938	62	39	1940
4	79	1944	62	41	1953
5	79	1938	62	37	2013
6	79	1938	62	42	1994
7	75	2011*	62	42	2010*
8	77	2001	62	42	2009
9	75	2001	62	36	1999
10	77	2001	62	37	1964
11	78	1988	62	40	1968
12	77	1988	62	40	2006*
13	78	1947	62	36	1941
14	78	1988	61	38	1964
15	78	1985	61	39	1964
16	79	1938	61	40	1964
17	78	1938	61	41	1957
18	76	2002*	61	38	1981
19	75	1991*	61	40	1945
20	75	2004*	61	42	2008*
21	76	2009*	61	38	1982
22	80	1976	61	36	1982
23	74	2003	60	38	1957
24	72	2009*	60	35	1987
25	77	1968	60	35	1940
26	76	1948	60	39	1981
27	76	1948	60	40	1989
28	76	1973	60	37	1941
29	74	2004*	59	35	1986*
30	75	2004	59	31	1965
31	75	2005	59	31	1965

September Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	75	1941	59	35	1991*
2	76	1961	59	36	1991*
3	76	1993*	58	38	1967
4	76	1959	58	40	1989*
5	75	1973	58	33	1938
6	74	2014*	58	36	1984
7	74	2014	57	37	1984
8	73	2012*	57	36	1990*
9	77	1945	57	34	1980
10	76	1989	57	31	1995
11	75	2013	56	32	1995
12	74	1971	56	35	1985
13	74	1957	56	33	1985*
14	74	1944	56	32	1959
15	74	2005*	55	29	1983
16	74	1991	55	29	1984
17	75	1991	55	27	1959
18	75	1991	55	31	1959
19	73	1991	54	32	2014*
20	74	1989	54	25	1979
21	75	1989	54	28	1962
22	74	1989	53	31	1962
23	74	1989	53	23	1947
24	71	1985	53	26	1963
25	72	2001	52	25	1950
26	74	1958	52	20	1951
27	73	1958	52	13	1957
28	73	2010*	52	22	1957
29	72	2010	51	21	1951
30	71	2010*	51	19	1981

October Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	72	2010	51	21	1981*
2	75	1954	50	28	1997*
3	70	1969	50	21	1945*
4	68	1986*	50	21	1945
5	72	2002	49	16	1984
6	69	1991*	49	8	1984
7	70	2005	48	20	1999
8	72	2005	48	23	2001
9	70	2005*	48	22	1980
10	69	1959	47	19	1980
11	67	1990*	47	17	1964*
12	71	1990	47	14	1963
13	70	1990*	46	13	1963
14	70	1990*	46	19	1980
15	68	1995*	46	16	1996
16	68	2014*	45	19	1994
17	66	1947	45	20	1970
18	67	1975	44	15	1997
19	66	2007	44	10	1959
20	68	2007	44	10	1972
21	67	1995	43	10	1940
22	69	1979	43	10	1940
23	64	1979	43	8	1969
24	66	1990	42	10	1969
25	66	2009	42	17	1962*
26	63	2010*	41	13	1941
27	67	2010	41	12	1974
28	67	1984	41	8	1974
29	66	1984	40	7	1991
30	64	1946	40	4	2001
31	65	1949	40	6	2001

November Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	66	1971*	39	15	1992
2	67	1971	39	6	1965
3	65	1971*	38	11	2002*
4	67	1982	38	13	1989
5	66	1982	38	8	1965
6	68	1948	37	6	1987
7	64	1951*	37	1	2002
8	64	1938	37	0	2003
9	64	1986	36	0	2003
10	67	1948	36	-4	1956
11	66	1948	35	2	1956
12	62	2002	35	7	1999
13	63	2012	35	4	1954
14	61	1959*	34	-2	1986
15	63	2008	34	2	2003
16	63	2008*	34	-4	1996
17	63	2006	33	-5	1996
18	63	2013	33	3	1959
19	63	1957	32	3	2014
20	65	1948	32	6	2008
21	60	1988*	32	-1	1987
22	60	1994*	31	-2	1987
23	62	1992	31	2	2008
24	63	1999	31	-7	2013
25	62	1953	30	-10	2013
26	59	1979*	30	-1	1978
27	62	1986	30	-3	1949
28	61	1994*	29	1	1951
29	62	1990	29	-2	1955
30	62	2001	29	-3	1958

December Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	63	2006*	28	-9	2007
2	64	2006	28	-8	2003
3	64	2009	28	-20	1976
4	60	1990	27	-15	1976
5	60	1994	27	-7	1989
6	61	1982	27	-4	2000
7	61	1953	26	-6	1989
8	57	1951	26	-7	2008
9	57	1973	26	-12	2002
10	61	2012	26	-14	1968
11	59	1966	25	-23	1977
12	58	2008	25	-15	1988*
13	58	1983*	25	-19	1976
14	56	1991	24	-20	1976
15	54	1991	24	-9	1989
16	58	1971	24	-10	1961
17	59	2000	24	-17	1979
18	57	2000	23	-17	1979
19	55	1990	23	-16	1979
20	59	2002	23	-20	1955
21	57	1999*	23	-25	1955
22	60	1990	22	-16	1955
23	59	1990	22	-10	1989
24	58	1990	22	-12	1975
25	62	2014	22	-28	1980
26	55	1973*	22	-27	1980
27	57	1973	21	-18	1968
28	56	1949	21	-10	1952
29	56	1982	21	-9	1994
30	53	1990	21	-16	1962
31	55	1990	21	-20	1962

Earliest/Latest
55
	Earliest 1st	Jan 1 1973
	Average 1st	March 9
	Latest 1st	June 5 1967

	Earliest Last	Oct 26 1980
	Average Last	December 5
	Latest Last	December 31 1990

60
	Earliest 1st	Feb 15 1939
	Average 1st	May 5
	Latest 1st	June 5 1967

	Earliest Last	Oct 3 1964
	Average Last	November 13
	Latest Last	December 25 2014

65
	Earliest 1st	May 3 2010
	Average 1st	May 28
	Latest 1st	June 14 1966

	Earliest Last	September 11 1996, 1950
	Average Last	October 11
	Latest Last	November 20 1948

70
	Earliest 1st	May 17 1974
	Average 1st	June 19
	Latest 1st	July 18 2009

	Earliest Last	August 10 1975
	Average Last	September 17
	Latest Last	October 14 1990,1983

All Time Extremes:
Highest		Lowest
81	July 21 1977 July 16 1977	-30	Jan 23 1976 Jan 15 1957
80	Aug 22 1976 Aug 1 1975 July 26 1940 July 29 1938	-28	Dec 25 1980
79	June 18 1994 June 16 1977 Aug 4 1944 Aug 16 1938 Aug 6 1938 Aug 5 1938 July 29 1938	-27	Dec 26 1980 Feb 11 1979 Jan 9 1968 Jan 30 1948

Period of Record:
Extremes 1938 to 1941, 1944 to 2014
Extremes 1938 to 1941, 1944 to 2014

January
February
March
April
May
June
July
August
September
October
November
December
Miscellaneous

January Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	49	1979	16	-18	1997
2	55	1979	16	-20	1957
3	53	2000*	16	-20	1981
4	57	2000	16	-26	1981
5	55	2000	16	-23	1981
6	58	2007	15	-20	1996
7	50	1998	15	-21	1988
8	51	1979	15	-19	1968
9	53	1978	15	-23	1968
10	41	2000*	15	-25	1982
11	56	2014	15	-23	1982
12	54	2014	15	-23	1982
13	49	1995	15	-20	1982*
14	57	2005*	14	-35	1988
15	58	1995	14	-31	1988
16	58	1995	14	-26	2004
17	55	1995	14	-28	1982
18	55	2006	14	-31	1982
19	55	1996	14	-23	1983
20	49	1996	14	-17	1958
21	49	1954	14	-21	1955
22	46	1957	14	-26	1982
23	50	1957*	14	-28	1982
24	52	1953	14	-20	2011*
25	54	2010	14	-19	2004*
26	55	1978	14	-16	2004
27	52	1976*	14	-19	1982
28	49	1996*	14	-16	2003
29	49	1994	14	-17	1977
30	54	2013	14	-17	1977*
31	57	2013	14	-14	1999

February Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	47	1988	14	-20	1961
2	52	1981*	14	-23	1961
3	52	2006	14	-22	1955
4	50	1982	14	-25	1978
5	46	2006	14	-25	1978
6	42	2008*	14	-15	1993
7	49	1951	14	-17	1993
8	48	1951	14	-16	1963
9	45	1950	14	-12	1985*
10	49	1990	14	-22	1979
11	59	1981	14	-29	1979
12	58	1981	15	-27	1979
13	54	1999	15	-20	1967
14	44	1951	15	-26	1979
15	48	1984*	15	-25	1979
16	49	1954*	15	-24	2003
17	46	2006	15	-26	1979
18	54	2008	15	-26	1979
19	53	1981	15	-32	1979
20	53	1981	16	-14	1950
21	54	1953	16	-21	1950
22	53	1976	16	-17	1999
23	52	1990	16	-18	1999
24	48	1985	16	-14	1972
25	47	1985	16	-14	1982
26	51	1957	17	-15	2003*
27	54	1997	17	-14	1950
28	52	1997	17	-16	2014

March Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	47	1999	17	-19	1980
2	59	1991	17	-15	1980
3	55	1991	18	-31	1950
4	52	2002*	18	-18	1950
5	55	1964	18	-6	2002
6	52	2004	18	-23	2007
7	52	2011	19	-20	2007
8	56	1995	19	-21	1949
9	56	1998	19	-18	2007
10	55	2002*	19	-17	1984
11	52	1992	19	-16	1960
12	50	2013	20	-20	1984
13	53	1990*	20	-13	1984
14	54	2006*	20	-6	2014
15	53	2007	21	-14	1993
16	56	1990	21	-9	1980
17	58	1990	21	-8	2014
18	57	1990	21	-14	1961
19	54	1986	22	-12	1967
20	53	1986	22	-8	1949
21	56	2012	22	-14	1961
22	55	2012	23	-8	2004
23	54	1949	23	-3	2009
24	54	1953	23	-6	2014
25	53	1953	24	-11	1960
26	53	1949	24	-13	1960
27	62	1949	24	-12	2012
28	62	1989	25	-11	1982
29	57	2003	25	-7	1982
30	56	1977	25	0	1983
31	56	1977	26	-5	2007

April Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	57	1998	26	-8	1957
2	54	2008	26	-2	2008
3	54	2002*	27	-3	1954
4	62	1974	27	-5	1954
5	58	1981*	27	-9	1973
6	55	1981	28	-9	1973
7	56	1997	28	-9	1973
8	57	2000	28	-1	1982
9	58	2000	29	1	1997*
10	55	2002*	29	-7	1997
11	56	2011	29	-2	1997
12	56	2011	30	-5	1976
13	57	2002	30	-6	1976
14	57	2004*	31	1	1973
15	58	2014*	31	1	1973
16	59	2002*	31	-5	2005
17	59	1998*	32	-3	2003
18	61	1981	32	-2	2008
19	61	2013*	33	4	2005
20	61	2013	33	4	2007
21	59	1987	33	1	1975
22	61	1987	34	3	1989
23	62	1977	34	3	1989
24	60	1987	34	8	1989
25	55	1961	35	3	2004
26	62	2011	35	9	1989
27	63	2011	36	3	1973
28	64	2011	36	9	2001
29	61	1981	36	3	2012
30	61	1996	37	5	1978

May Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	68	2011	37	7	2006
2	63	2004	38	12	1997
3	65	2010	38	7	2007
4	61	1998	38	12	2007*
5	65	1949	39	12	2007
6	66	1950	39	9	2003
7	68	2000	40	6	2001
8	65	2000	40	2	1950
9	65	2000	40	10	1962
10	62	2007*	41	9	2010
11	63	1996	41	13	1962
12	63	2001	41	8	2005
13	65	1985	42	10	2007
14	65	1985	42	9	1975
15	64	2004	43	19	1977
16	64	2004	43	20	1987*
17	64	1976	43	16	1983
18	69	2003	44	15	1983
19	66	1949	44	22	1983
20	65	1996*	44	20	2002*
21	67	1996	45	20	1956
22	67	2013	45	23	1958
23	67	2013	46	22	1971
24	65	2011*	46	8	1956
25	66	1955	46	16	1956
26	67	2012	47	24	2009*
27	67	1991*	47	22	1954
28	69	1987	47	25	2008*
29	73	1987	48	26	2004*
30	71	1987	48	21	1961
31	71	1987	48	24	1961

June Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	74	2002	49	21	2009
2	69	1980	49	27	1953
3	68	1995*	49	20	1953
4	70	1951	50	30	1964
5	68	2002	50	26	1971
6	70	2010	50	23	1958
7	74	1999	51	26	1958
8	72	2008*	51	26	1983
9	72	1984	51	25	1983
10	75	2003	51	28	1983*
11	72	2005*	52	27	1956
12	73	2005	52	28	1953
13	71	2005	52	32	1980
14	72	2005*	53	23	1958
15	73	2001	53	30	1978*
16	75	1981	53	23	1964
17	77	1952	53	31	1964*
18	75	1994	54	23	1956
19	73	1995	54	34	1956
20	72	1995*	54	31	2014
21	76	1949	54	36	1984*
22	73	1949	55	33	1986
23	72	1988	55	32	1993*
24	73	1950	55	33	1993
25	79	1949	55	33	2002
26	77	1952	56	31	1965
27	75	1952	56	39	1981
28	72	2005	56	37	1981
29	73	1999	56	36	1996
30	71	1999	56	34	1978

July Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	73	2013	57	34	1978
2	76	2002	57	31	1992*
3	74	2002*	57	35	1962
4	74	1983*	57	36	1962
5	75	1999	57	36	1982
6	73	1999	57	40	1979*
7	75	2013	58	32	1965
8	73	1994*	58	36	1969
9	76	1994	58	39	1969
10	74	2013*	58	39	1983
11	74	1988*	58	40	2002
12	75	1987*	58	40	1978
13	73	1987*	58	37	1980
14	79	1973	59	43	2009
15	74	2014*	59	43	1966
16	77	1980	59	38	1966
17	74	1988*	59	42	1954
18	77	1982	59	41	1958
19	80	1982	59	43	1965*
20	76	2013	59	39	1965
21	76	2011*	59	38	1999
22	75	2011	59	40	1992*
23	74	1978	59	36	1977
24	75	2010	59	38	1985
25	75	2010*	59	41	1957
26	75	1995*	59	42	1977*
27	74	2005*	59	38	1965
28	74	1995	59	40	1977
29	79	1973	59	39	1997
30	73	1988*	59	39	1968
31	73	1988*	59	36	1964

August Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	76	2006*	59	36	1953
2	76	1975	59	36	1956
3	76	1975	59	37	1956*
4	74	1988*	59	41	1964
5	78	1980	59	36	2013*
6	76	1980	59	37	1964
7	74	2011	59	37	1964
8	74	2011*	59	38	1957
9	76	1980	59	34	1964
10	75	2001*	59	33	1964
11	75	1988	59	37	1968
12	76	1988	59	38	2006
13	76	1988	59	38	2006*
14	79	1988	59	40	1957
15	77	1988	58	39	1968
16	72	2010*	58	42	1968
17	75	1987	58	37	1957
18	75	1987	58	36	1968
19	71	1956*	58	35	1995
20	72	2004*	58	38	1981
21	73	2009*	58	38	1982
22	74	1976	58	34	1982
23	75	1976	57	35	1957
24	72	1998	57	34	1987*
25	74	1979	57	32	1989*
26	72	2007*	57	35	1981
27	73	1980*	57	31	1996
28	74	1973	57	32	1996*
29	73	2004*	56	31	1982*
30	73	1979	56	30	1965
31	73	2005*	56	30	1965

September Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	75	1950	56	30	1970
2	75	1973	56	34	1991*
3	74	1993	55	27	2000
4	74	1961	55	37	1997*
5	72	2012*	55	31	2000
6	74	1983	55	29	1995
7	71	2003*	54	33	1962
8	72	2012	54	32	1990
9	72	2004*	54	30	1978
10	70	2004*	54	32	1953
11	74	2013	53	31	1995
12	72	2013*	53	33	2002*
13	70	2013*	53	29	1991
14	72	1979	53	30	1953
15	72	2005*	52	28	1964
16	70	2002*	52	28	1964
17	70	2004*	52	26	1960
18	69	1994*	51	27	1990
19	72	1952	51	25	1993
20	70	2003*	51	24	1979
21	71	1978*	51	25	1962
22	72	1965	50	24	1962
23	70	2011*	50	25	1955
24	69	2011	50	25	1963
25	70	2001	49	25	1980
26	69	1958	49	20	1957
27	68	1998	49	12	1957
28	71	2002	48	18	1957
29	69	1974	48	21	2000
30	70	2010	48	16	1981

October Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	70	2010	47	20	1981
2	68	2002	47	24	1992*
3	68	2002	47	22	1975
4	67	1954	46	23	1987*
5	67	2002	46	6	1984
6	65	1983*	45	8	1984
7	67	2013*	45	11	1984
8	70	2005	45	15	1964
9	70	2005	44	18	1978
10	65	1949	44	14	1993
11	67	1949	44	13	1964*
12	65	1990	43	14	1963
13	71	1983	43	15	1963
14	70	1983	43	17	2002*
15	67	1995	42	8	1996
16	67	2014*	42	15	1994
17	59	2014*	41	16	1978
18	63	1980	41	14	1978
19	67	2007	41	15	1976
20	67	2007	40	12	2008*
21	65	1995	40	12	1972
22	65	1995*	39	13	1957
23	62	1979	39	9	1969
24	63	2009*	39	3	1975
25	63	2009*	38	9	1978
26	62	1975	38	19	1979
27	66	2010	38	11	1990*
28	66	2010	37	13	1990
29	63	2003*	37	10	1991
30	59	2012*	36	-2	2001
31	61	1949	36	-4	1975

November Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	64	1956	36	9	1975
2	63	1999	35	9	2008*
3	63	1999*	35	8	2002
4	66	1982	34	2	1973
5	66	1982	34	7	1989
6	60	1988	34	0	1987
7	61	1951	33	-1	2002
8	63	1996	33	-3	2003
9	63	1996	32	-2	2003
10	61	1975	32	-2	1956
11	63	2002	32	1	1974*
12	59	1995	31	1	2010
13	59	2012	31	0	1986
14	59	1951	31	-2	1986
15	62	2008	30	-1	1996
16	62	2008	30	1	1996*
17	63	2006	29	-10	1996
18	59	1987*	29	0	1996
19	63	1957	29	0	1973
20	61	1957*	28	3	2013*
21	59	1954	28	-8	1987
22	59	1953	28	-8	1987
23	61	1953	27	0	1987
24	61	1999	27	-7	2013
25	60	1953	27	-9	2013
26	61	1979	26	-8	1978
27	62	1979	26	-10	1957
28	58	1993*	26	-4	1957
29	61	2003	25	-3	1989*
30	61	2011	25	-14	1958

December Dew Points
Years marked with a * are the latest of multiple occurrences
Day	Highest Value	Year	Average	Lowest Value	Year
1	61	2006	25	-11	2007
2	61	2006	24	-8	2003
3	59	2009	24	-20	1976
4	56	1982*	24	-15	1976
5	57	1950	23	-5	1989*
6	60	1982	23	-2	2000*
7	60	1953	23	-5	1989
8	56	1951	22	-9	2008*
9	52	1966	22	-11	2002*
10	58	1953	22	-10	1982
11	54	1966	21	-19	1977
12	51	1949	21	-21	1977
13	56	1949	21	-17	1976
14	49	1991	21	-23	1976
15	51	1983	20	-9	1989
16	54	1982	20	-8	1961
17	52	1996	20	-13	1958
18	53	1954	19	-11	2009
19	51	1954	19	-13	2009
20	55	2002	19	-25	1955
21	55	1957	19	-26	1955
22	59	2013	18	-18	1955
23	58	1990	18	-14	1989
24	55	2004	18	-17	1975
25	58	2014	18	-30	1980
26	54	1982	18	-28	1980
27	56	1949	17	-14	1989
28	56	1949	17	-15	1960
29	55	1984*	17	-12	1960
30	53	1984	17	-23	1987
31	49	1990	17	-15	1987*

Earliest/Latest
55
	Earliest 1st	Jan 29 1979
	Average 1st	April 2
	Latest 1st	June 6 1967

	Earliest Last	Oct 4 2000
	Average Last	November 22
	Latest Last	December 29 1984,1982

60
	Earliest 1st	Mar 27 1949
	Average 1st	May 15
	Latest 1st	June 10 1967

	Earliest Last	September 5 1966
	Average Last	October 24
	Latest Last	December 7 1953

65
	Earliest 1st	May 1 2011
	Average 1st	June 3
	Latest 1st	Jul 10 1965

	Earliest Last	Aug 19 1966
	Average Last	September 26
	Latest Last	Nov 5 1982

70
	Earliest 1st	May 29 2012, 1987
	Average 1st	June 29
	Latest 1st	Sep 20 1965

	Earliest Last	July 18 1968
	Average Last	September 3
	Latest Last	October 14 1983

All Time Extremes:
Highest		Lowest
80	July 19 1982	-35	Jan 14 1988
79	Aug 14 1988 July 29 1973 July 14 1973 June 25 1949	-32	Feb 19 1970
78	Aug 5 1980	-31	Jan 15 1988 Jan 18 1982 Mar 4 1950
		-30	Dec 25 1980