Column | Definition | |
---|---|---|
2 | MAX | Highest temperature in °F during the 24hrs from midnight to midnight standard time. |
3 | MIN | Lowest temperature in °F during the 24 hrs from midnight to midnight standard time. |
4 | AVG | The average (rounded) of the MAX and MIN temperatures |
5 | DEP | Departure of the AVG temperature from the 30-year mean temperature for the day. |
6A | HDD | Heating Degree Days when AVG is less than 65°F. (HDD = 65°F - AVG). The HDD season runs from July 1 - June 30 |
6B | CDD | Cooling Degree Days when AVG is above 65°F. (CDD = AVG - 65°F). The CDD season runs from January 1 - December 31. |
7 | WTR | This is the total (melted, if ice or snow) precipitation for the day in inches. |
8 | SNW | The total amount of snow (not melted) that fell, in inches. (This is the sum of hourly accumulations, and is often more than the actual snow depth due to either melting or compaction). |
9 | DPTH | The snow depth, in inches, at 600 AM Standard Time. |
10 | AVG | The average wind speed for the day, in Miles Per Hour |
11 | SPD | The fastest 2-minute (average) wind speed, in Miles Per Hour. |
12 | DIR | The direction the fastest 2-minute wind was blowing FROM in tens of degrees, i.e., 27 would be 270 degrees = wind was blowing from the west to the east (36 = North, 09 = East, 18 = South, 27 = West) |
13 | MIN | Total minutes of sunshine. Sunshine is defined as occurring when a shadow is cast. |
14 | PSBL | Percentage of total possible sunshine that actually occurred. |
15 | S-S | Mean cloudiness from sunrise to sunset. No longer measured at most locations. |
16 | WX | 1 = fog with visibility of more that 1/4 mile, and less than 7 miles 2 = fog reducing visibility to 1/4 mile or less 3 = thunderstorm (thunderstorm is defined as thunder heard at the location, or lightning overhead) 4 = ice pellets 5 = hail 6 = glaze or rime 7 = blowing dust (reducing visibility less than 6 statute miles) 8 = smoke or haze (reducing visibility less than 6 statute miles) 9 = blowing snow X = Tornado within sight of observer |
17 | SPD | Peak wind speed (5 second average) in Miles Per Hour |
18 | DR | The direction the peak wind was blowing FROM in tens of degrees, i.e., 27 would be 270 degrees = wind was blowing from the west to the east (36 = North, 09 = East, 18 = South, 27 = West) |