MADISON, ALABAMA

Period of Record General Climate Summary - Growing Degree Days

From Year=1894 To Year=1974
Station:(014976) MADISON
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 162 181 394 632 908 1109 1224 1210 1018 703 350 176 8066
40 S 162 343 736 1368 2276 3385 4609 5819 6836 7540 7890 8066 8066
45 M 88 101 267 485 753 959 1069 1055 868 550 229 95 6519
45 S 88 189 456 941 1694 2653 3722 4777 5644 6194 6424 6519 6519
50 M 41 49 163 346 598 809 914 900 718 402 133 44 5117
50 S 41 90 254 600 1198 2007 2921 3820 4538 4940 5073 5117 5117
55 M 16 19 87 222 446 659 759 745 568 266 66 16 3868
55 S 16 35 122 344 789 1448 2207 2952 3520 3786 3852 3868 3868
60 M 4 5 38 122 300 509 604 590 421 153 25 4 2774
60 S 4 10 47 169 468 977 1581 2171 2592 2745 2770 2774 2774
Corn Growing Degree Days
50 M 93 108 242 397 596 743 827 815 678 454 217 100 5269
50 S 93 201 443 840 1435 2178 3006 3820 4498 4952 5169 5269 5269
Derived form the 1894-1974 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