PORT GIBSON 1 NW, MISSISSIPPI

Period of Record General Climate Summary - Growing Degree Days

From Year=1893 To Year=2012
Station:(227132) PORT GIBSON 1 NW
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 267 298 537 733 982 1149 1262 1252 1063 764 457 288 9053
40 S 267 565 1102 1835 2817 3966 5228 6480 7544 8307 8764 9053 9053
45 M 169 194 394 583 827 999 1107 1097 913 609 323 181 7396
45 S 169 363 757 1340 2167 3166 4273 5370 6284 6893 7215 7396 7396
50 M 99 114 266 437 672 849 952 942 763 457 208 103 5862
50 S 99 212 478 915 1587 2435 3388 4330 5093 5551 5758 5862 5862
55 M 51 59 161 298 518 699 797 787 614 315 119 53 4470
55 S 51 110 271 569 1087 1786 2583 3370 3984 4299 4418 4470 4470
60 M 21 26 84 178 366 549 642 632 465 193 56 21 3232
60 S 21 47 131 309 674 1223 1865 2497 2962 3155 3211 3232 3232
Corn Growing Degree Days
50 M 175 197 347 477 658 779 858 845 713 509 303 189 6050
50 S 175 372 719 1196 1854 2633 3490 4336 5049 5558 5861 6050 6050
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