HERNANDO, MISSISSIPPI

Period of Record General Climate Summary - Growing Degree Days

From Year=1893 To Year=2012
Station:(223975) HERNANDO
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 153 191 418 661 932 1139 1270 1245 1036 733 378 179 8335
40 S 153 344 762 1423 2354 3494 4764 6009 7044 7777 8156 8335 8335
45 M 85 111 289 513 777 989 1115 1090 886 579 254 99 6786
45 S 85 195 484 997 1774 2763 3878 4968 5854 6433 6687 6786 6786
50 M 40 55 181 372 622 839 960 935 736 430 154 48 5371
50 S 40 95 276 648 1270 2109 3069 4004 4740 5170 5324 5371 5371
55 M 16 22 101 243 468 689 805 780 586 293 80 19 4102
55 S 16 38 138 382 850 1539 2344 3124 3710 4003 4083 4102 4102
60 M 5 7 46 138 320 539 650 625 439 176 33 6 2983
60 S 5 11 58 195 515 1055 1704 2329 2768 2944 2977 2983 2983
Corn Growing Degree Days
50 M 86 110 244 407 617 781 869 849 695 466 220 98 5442
50 S 86 196 440 848 1465 2246 3115 3964 4659 5125 5345 5442 5442
Derived form the 1893-2012 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