Column 1:  DY = DAY (ACTUALLY DATE OF THE MONTH)
Column 2:  MAX= MAXIMUM TEMPERATURE
Column 3:  MIN= MINIMUM TEMPERATURE
Column 4:  AVG= AVERAGE TEMPERATURE
Column 5:  DEP= DEPARTURE FROM "NORMAL"
Column 6A: HDD= HEATING DEGREE DAYS
Column 6B: CDD= COOLING DEGREE DAYS
Column 7:  WTR= AMOUNT OF RAINFALL IN INCHES
Column 8:  SNW= AMOUNT OF SNOWFALL IN INCHES
Column 9:  DPTH= AMOUNT OF SNOW ON THE GROUND AT 7AM
Column 10: AVG SPD= AVERAGE WIND SPEED (MPH)
Column 11: MX SPD= MAXIMUM WIND SPEED AVERAGED OVER 2 MINUTES (MPH)
Column 12: DIR=    DIRECTION ASSOCIATED WITH MAX WIND OCCURRENCE
Column 13: MIN= MINUTES OF SUNSHINE
Column 14: PSBL= MAXIMUM NUMBER OF MINUTES OF SUNSHINE POSSIBLE ON THAT DAY
Column 15: S-S = (not used)
Column 16: WX= WEATHER OCCURRENCE OBSERVED THAT DAY (CODED 1-9 --- see below --- AND ALSO "X" FOR TORNADO...LOOK AT EXPLANATION OF CODES ON THE FORM)
Column 17: SPD (COLUMN 17)= PEAK WIND GUST (MPH)
Column 18: DR (COLUMN 18) = DIRECTION ASSOCIATED WITH THE PEAK WIND GUST (MPH) 

...SYMBOLS USED IN COLUMN 16...    

    1 = FOG                      
    2 = FOG REDUCING VISIBILITY TO 1/4 MILE OR LESS      
    3 = THUNDER                  
    4 = ICE PELLETS              
    5 = HAIL                     
    6 = GLAZE OR RIME            
    7 = BLOWING DUST OR SAND: VSBY 1/2 MILE OR LESS    
    8 = SMOKE OR HAZE            
    9 = BLOWING SNOW             
    X = TORNADO