ALAPAHA EXP STN, GEORGIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1891 To Year=1974
Station:(090131) ALAPAHA EXP STN
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 369 372 592 783 1039 1177 1269 1264 1112 859 538 373 9747
40 S 369 742 1333 2117 3156 4333 5602 6866 7978 8837 9375 9747 9747
45 M 244 249 443 634 884 1027 1114 1109 962 704 394 245 8010
45 S 244 494 937 1571 2454 3481 4596 5705 6667 7371 7765 8010 8010
50 M 146 150 306 485 729 877 959 954 812 550 264 146 6378
50 S 146 296 602 1087 1816 2693 3652 4606 5418 5969 6232 6378 6378
55 M 77 79 189 341 574 727 804 799 662 400 155 76 4883
55 S 77 155 344 685 1259 1986 2791 3589 4252 4652 4807 4883 4883
60 M 32 33 99 210 420 577 649 644 513 260 77 32 3546
60 S 32 65 165 375 795 1372 2021 2665 3177 3437 3514 3546 3546
Corn Growing Degree Days
50 M 232 232 374 506 696 797 866 861 755 570 350 237 6476
50 S 232 464 839 1345 2041 2837 3704 4564 5320 5889 6239 6476 6476
Derived form the 1891-1974 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