Definition of Terms in Climate Tables

Definition of Terms in Climate Tables (F6)

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)