THORSBY EXPERIMENT STN, ALABAMA

Period of Record General Climate Summary - Growing Degree Days

From Year=1957 To Year=2012
Station:(018209) THORSBY EXPERIMENT 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 169 237 468 683 934 1101 1218 1190 1009 721 421 232 8383
40 S 169 406 874 1557 2491 3592 4810 6000 7009 7730 8150 8383 8383
45 M 89 143 327 533 779 951 1063 1035 859 566 288 133 6767
45 S 89 233 560 1093 1872 2823 3887 4921 5780 6346 6634 6767 6767
50 M 41 76 205 387 624 801 908 880 709 413 176 68 5288
50 S 41 117 322 709 1333 2134 3043 3922 4632 5045 5220 5288 5288
55 M 16 34 110 252 470 651 753 725 559 268 89 29 3957
55 S 16 50 160 412 882 1533 2286 3011 3570 3839 3928 3957 3957
60 M 4 11 48 138 320 501 598 570 411 146 35 9 2790
60 S 4 15 63 201 520 1021 1620 2189 2600 2746 2781 2790 2790
Corn Growing Degree Days
50 M 96 146 285 432 619 754 837 820 685 456 256 135 5523
50 S 96 243 528 960 1579 2334 3171 3991 4676 5132 5388 5523 5523
Derived form the 1957-2012 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