VERNON 2 N, ALABAMA

Period of Record General Climate Summary - Growing Degree Days

From Year=1938 To Year=2012
Station:(018517) VERNON 2 N
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 138 186 406 642 894 1085 1222 1196 980 655 358 190 7950
40 S 138 324 729 1371 2265 3350 4572 5767 6747 7402 7760 7950 7950
45 M 76 109 276 494 739 935 1067 1041 830 501 236 109 6412
45 S 76 184 460 954 1693 2628 3695 4735 5565 6066 6302 6412 6412
50 M 37 56 168 354 584 785 912 886 680 353 138 58 5010
50 S 37 93 262 616 1199 1985 2896 3782 4462 4815 4953 5010 5010
55 M 15 24 90 229 430 635 757 731 530 223 68 26 3757
55 S 15 39 129 358 788 1423 2180 2911 3441 3664 3732 3757 3757
60 M 4 8 38 126 285 485 602 576 384 120 25 8 2661
60 S 4 12 50 176 461 946 1548 2123 2507 2627 2653 2661 2661
Corn Growing Degree Days
50 M 94 135 273 427 590 726 819 799 650 442 243 128 5326
50 S 94 229 502 929 1519 2245 3064 3863 4513 4954 5197 5326 5326
Derived form the 1938-2012 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