DOTHAN CAA AIRPORT, ALABAMA

Period of Record General Climate Summary - Growing Degree Days

From Year=1902 To Year=2012
Station:(012372) DOTHAN CAA 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 349 390 609 821 1074 1208 1281 1280 1106 864 531 366 9879
40 S 349 739 1349 2169 3243 4451 5731 7012 8118 8982 9513 9879 9879
45 M 227 267 459 671 919 1058 1126 1125 956 709 388 236 8141
45 S 227 494 953 1624 2543 3600 4726 5851 6808 7517 7905 8141 8141
50 M 135 166 320 521 764 908 971 970 806 555 258 135 6509
50 S 135 301 621 1142 1905 2813 3784 4754 5560 6115 6374 6509 6509
55 M 71 93 201 375 609 758 816 815 656 404 152 68 5019
55 S 71 164 366 741 1349 2107 2923 3738 4394 4798 4951 5019 5019
60 M 31 44 109 238 454 608 661 660 507 262 75 28 3676
60 S 31 74 184 422 876 1484 2145 2805 3312 3573 3648 3676 3676
Corn Growing Degree Days
50 M 205 230 376 534 723 825 883 879 760 567 328 214 6522
50 S 205 435 810 1344 2067 2892 3774 4654 5413 5980 6308 6522 6522
Derived form the 1902-2012 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