DECATUR, ALABAMA

Period of Record General Climate Summary - Cooling Degree Days

From Year=1880 To Year=1969
Station:(012207) DECATUR
Averages Daily Extremes
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 21 24 94 237 474 686 790 768 582 272 66 20 4033
57 14 15 71 193 414 626 728 706 522 223 46 13 3572
60 7 7 43 133 327 536 635 613 434 158 25 6 2925
65 1 1 15 58 195 387 480 458 293 74 6 1 1969
70 0 0 3 14 89 244 326 304 166 24 1 0 1172
Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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