National Weather Service United States Department of Commerce
January February March April May June July August September October November December

September Normals, Means and Extremes for Galveston

Normals 1981-2010.  Temperature Records 1874-Present.  Rainfall Records 1871-Present.

Date Normal
High
(F)
Normal
Low
(F)
Record High
(F)
Record Low
(F)
Rec Low Max
(F)
Rec High Min
(F)
Normal Cumulative Precip
Monthly - Yearly (in)
Record
Precipitation
(inches)

1

90

79

  96 - 1995

68 - 1949

80 - 1915

84 - 2011

0.22 - 31.40

3.31 - 2001

2

90

79

  98 - 1995

69 - 1899

80 - 1967

84 - 2012

0.44 - 31.62

4.64 - 1941

3

90

78

  99 - 2000

65 - 1974

79 - 1984

84 - 1985

0.66 - 31.84

6.24 - 1988

4

89

78

101 - 2000

63 - 1974

74 - 1974

84 - 1989

0.89 - 32.07

5.73 - 1885

5

89

78

104 - 2000

62 - 1974

76 - 1974

84 - 1994

1.13 - 32.31

1.80 - 1955

6

89

78

  94 - 1912

64 - 1974

77 - 1918

83 - 2016

1.36 - 32.54

4.83 - 1877

7

89

78

  94 - 1876

67 - 1918

79 - 1974

83 - 2016

1.60 - 32.78

4.19 - 1958

8

89

78

  96 - 1995

67 - 1957

75 - 1957

84 - 2010

1.86 - 33.04

9.00 - 1900

9

89

77

  97 - 1995

66 - 1880

75 - 1880

84 - 1989

2.12 - 33.30

5.87 - 1966

10

89

77

  94 - 1995

62 - 1880

74 - 1948

83 - 2010

2.37 - 33.55

8.02 - 1998

11

88

77

  94 - 1937

68 - 1907

75 - 1948

83 - 2010

2.63 - 33.81

5.01 - 1961

12

88

77

  94 - 1912

65 - 1959

73 - 1878

83 - 1909

2.88 - 34.06

6.92 - 1961

13

88

77

  93 - 2002

61 - 1902

72 - 1902

83 - 1982

3.12 - 34.30

3.50 - 2000

14

88

76

  93 - 1900

62 - 1913

68 - 1913

83 - 1987

3.34 - 34.52

2.38 - 1907

15

88

76

  94 - 1900

62 - 1993

71 - 1993

83 - 2005

3.54 - 34.72

6.25 - 1970

16

88

76

  96 - 2004

62 - 1979

73 - 1961

84 - 1995

3.72 - 34.90

6.48 - 1875

17

87

76

  95 - 2004

60 - 1903

73 - 1943

83 - 1995

3.90 - 35.08

4.64 - 1877

18

87

76

  96 - 1927

59 - 1875

70 - 1943

83 - 1990

4.07 - 35.25

2.47 - 1979

19

87

 75 

  93 - 1995

58 - 1901

73 - 1901

83 - 1995

4.23 - 35.41

5.11 - 1979

20

87

 75 

  95 - 1999

60 - 1901

70 - 1971

83 - 1900

4.38 - 35.56

4.27 - 1885

21

87

 75 

  96 - 2005

56 - 1983

70 - 1983

83 - 1992

4.52 - 35.70

5.39 - 1940

22

86

 75 

  95 - 2005

60 - 1983

72 - 1983

83 - 1993

4.68 - 35.86

5.00 - 1946

23

86

74

  93 - 1998

62 - 1947

73 - 1928

82 - 2000

4.85 - 36.03

3.40 - 1941

24

86

74

  92 - 2005

57 - 1989

73 - 1989

82 - 1998

5.02 - 36.20

2.66 - 1886

25

86

74

  92 - 2013

61 - 1875

73 - 1875

82 - 1998

5.20 - 36.38

6.27 - 1875

26

85

74

  91 - 2011

56 - 1940

68 - 1889

83 - 2005

5.38 - 36.56

3.89 - 1913

27

85

73

  92 - 1998

52 - 1942

68 - 1942

83 - 1955

5.53 - 36.71

2.54 - 1944

28

85

73

  96 - 1998

54 - 1908

68 - 1967

82 - 2005

5.69 - 36.87

2.25 - 1987

29

85

73

  95 - 1998

58 - 1942

66 - 1984

82 - 1986

5.86 - 37.04

2.12 - 1921

30

85

73

  91 - 1998

56 - 1920

66 - 1890

82 - 1986

6.03 - 37.21

4.33 - 1945

Month

87.4

75.9

104 - 2000

52 - 1942

66 - 1984

84 - 2012

        6.03 inches

9.00 - 1900