ATHENS 2, ALABAMA

Period of Record General Climate Summary - Growing Degree Days

From Year=1955 To Year=1991
Station:(010395) ATHENS 2
Averages Daily Extremes
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 99 161 349 605 868 1050 1181 1162 943 629 342 160 7549
40 S 99 259 608 1213 2081 3131 4313 5474 6417 7046 7388 7549 7549
45 M 48 90 231 459 713 900 1026 1007 793 476 224 88 6056
45 S 48 138 369 828 1541 2441 3467 4474 5267 5743 5968 6056 6056
50 M 20 43 136 323 559 750 871 852 643 331 130 41 4699
50 S 20 64 200 522 1081 1831 2702 3554 4197 4528 4658 4699 4699
55 M 7 16 69 204 407 600 716 697 494 203 64 15 3490
55 S 7 23 91 295 702 1302 2018 2715 3209 3411 3475 3490 3490
60 M 1 3 26 109 265 450 561 542 349 105 23 4 2439
60 S 1 4 30 139 404 855 1416 1958 2307 2412 2435 2439 2439
Corn Growing Degree Days
50 M 61 102 216 382 567 712 803 783 626 408 218 95 4974
50 S 61 163 379 761 1329 2041 2844 3627 4254 4661 4879 4974 4974
Derived form the 1955-1991 Data
M = Monthly Data
S - Running sum of monthly data.
Growing 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.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
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