ATHENS, GEORGIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1857 To Year=1971
Station:(090430) 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 191 213 421 652 931 1109 1216 1186 1003 707 378 199 8206
40 S 191 404 825 1477 2408 3517 4733 5919 6922 7629 8006 8206 8206
45 M 105 119 285 503 776 959 1061 1031 853 552 246 107 6597
45 S 105 224 508 1011 1787 2746 3807 4838 5691 6244 6490 6597 6597
50 M 51 57 171 359 621 809 906 876 703 401 140 50 5144
50 S 51 108 279 638 1259 2068 2974 3850 4553 4954 5094 5144 5144
55 M 20 23 87 228 467 659 751 721 554 260 65 19 3854
55 S 20 43 130 358 825 1484 2235 2956 3509 3770 3835 3854 3854
60 M 5 6 35 121 317 509 596 566 406 141 23 5 2731
60 S 5 11 47 168 485 995 1590 2156 2562 2703 2726 2731 2731
Corn Growing Degree Days
50 M 109 128 255 405 612 757 840 822 677 439 228 117 5389
50 S 109 237 493 898 1510 2266 3106 3929 4605 5044 5272 5389 5389
Derived form the 1857-1971 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