MADISON, ALABAMA

Period of Record General Climate Summary - Heating Degree Days

From Year=1894 To Year=1974
Station:(014976) MADISON
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
65 718 591 409 169 37 2 0 0 13 142 423 675 3180
60 567 455 281 90 11 0 0 0 3 70 292 523 2293
57 480 377 214 57 5 0 0 0 1 42 224 436 1835
55 424 327 175 40 2 0 0 0 1 28 183 381 1561
50 294 216 96 14 0 0 0 0 0 9 101 253 983
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