PRATTVILLE, ALABAMA

Period of Record General Climate Summary - Heating Degree Days

From Year=1899 To Year=1977
Station:(016640) PRATTVILLE
Averages Daily Extremes
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 533 419 277 99 14 0 0 0 4 91 330 520 2288
60 391 294 168 40 2 0 0 0 1 39 210 377 1522
57 313 227 116 21 1 0 0 0 0 20 150 298 1146
55 265 186 88 13 0 0 0 0 0 13 116 248 928
50 159 100 37 2 0 0 0 0 0 3 52 142 495
Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. This is done for each day of the month and summed.
Table updated on May 22,
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Southeast Regional Climate Center, SERCC Webmaster