MONTGOMERY WB CITY, ALABAMA

Period of Record General Climate Summary - Growing Degree Days

From Year=1930 To Year=1954
Station:(015555) MONTGOMERY WB CITY
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 362 365 562 766 1049 1220 1299 1285 1115 861 490 338 9713
40 S 362 728 1290 2055 3104 4324 5623 6909 8024 8885 9375 9713 9713
45 M 240 245 414 616 894 1070 1144 1130 965 706 349 213 7987
45 S 240 486 900 1516 2410 3479 4624 5754 6719 7425 7774 7987 7987
50 M 145 147 281 467 739 920 989 975 815 552 223 117 6372
50 S 145 292 573 1040 1779 2699 3688 4664 5479 6031 6254 6372 6372
55 M 79 75 171 325 584 770 834 820 665 402 126 57 4907
55 S 79 154 325 650 1233 2003 2838 3658 4323 4725 4851 4907 4907
60 M 35 32 88 196 430 620 679 665 515 261 58 22 3601
60 S 35 67 155 351 780 1400 2080 2745 3260 3521 3579 3601 3601
Corn Growing Degree Days
50 M 196 200 329 482 718 843 904 897 774 560 282 175 6359
50 S 196 396 725 1207 1925 2768 3672 4569 5342 5902 6184 6359 6359
Derived form the 1930-1954 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