BIRMINGHAM FAA ARPT, ALABAMA

Period of Record General Climate Summary - Cooling Degree Days

From Year=1930 To Year=2012
Station:(010831) BIRMINGHAM FAA ARPT
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 27 38 114 256 478 677 785 767 581 286 87 33 4130
57 18 27 86 209 417 617 723 705 521 235 63 23 3644
60 9 14 53 145 328 527 630 612 433 167 37 11 2966
65 2 3 18 63 193 378 475 457 289 78 11 2 1969
70 0 0 3 16 85 233 321 303 163 24 1 0 1149
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