ATLANTA WSO AIRPORT, GEORGIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1930 To Year=2012
Station:(090451) ATLANTA WSO AIRPORT
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 181 220 426 657 929 1109 1223 1204 1000 713 392 204 8258
40 S 181 401 827 1484 2413 3522 4745 5948 6949 7662 8054 8258 8258
45 M 99 128 290 508 774 959 1068 1049 850 559 261 112 6658
45 S 99 227 517 1025 1800 2758 3826 4875 5725 6284 6545 6658 6658
50 M 48 64 177 364 619 809 913 894 700 407 154 54 5203
50 S 48 112 289 653 1272 2081 2994 3888 4588 4996 5150 5203 5203
55 M 18 27 94 234 465 659 758 739 551 266 76 21 3906
55 S 18 45 139 372 837 1496 2254 2993 3543 3809 3885 3906 3906
60 M 5 7 39 126 316 509 603 584 402 146 28 6 2771
60 S 5 12 51 177 493 1001 1605 2188 2591 2737 2765 2771 2771
Corn Growing Degree Days
50 M 93 121 244 399 615 767 855 844 684 435 218 106 5381
50 S 93 215 458 858 1473 2240 3095 3939 4623 5058 5276 5381 5381
Derived form the 1930-2012 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