ATHENS, ALABAMA

Period of Record General Climate Summary - Growing Degree Days

From Year=1941 To Year=2012
Station:(010390) ATHENS
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 93 167 375 592 844 1067 1190 1163 892 602 288 142 7416
40 S 93 261 636 1228 2072 3139 4329 5492 6384 6986 7274 7416 7416
45 M 40 95 253 448 689 917 1035 1008 742 448 184 74 5933
45 S 40 135 389 837 1526 2443 3478 4486 5228 5675 5859 5933 5933
50 M 13 45 153 313 535 767 880 853 592 301 100 32 4585
50 S 13 58 212 525 1060 1827 2707 3560 4152 4453 4553 4585 4585
55 M 2 17 81 194 383 617 725 698 443 173 45 10 3388
55 S 2 19 100 293 677 1294 2019 2717 3160 3333 3378 3388 3388
60 M 0 4 34 101 248 467 570 543 299 76 13 1 2358
60 S 0 4 38 139 387 855 1425 1968 2267 2343 2357 2358 2358
Corn Growing Degree Days
50 M 49 105 222 371 545 735 833 803 582 371 167 74 4858
50 S 49 154 376 748 1293 2028 2860 3663 4246 4617 4784 4858 4858
Derived form the 1941-2012 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