COLUMBIA, MISSISSIPPI

Period of Record General Climate Summary - Growing Degree Days

From Year=1903 To Year=2012
Station:(221865) COLUMBIA
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 334 381 609 798 1044 1203 1300 1288 1113 839 525 369 9802
40 S 334 715 1324 2122 3166 4369 5669 6957 8070 8909 9434 9802 9802
45 M 218 261 459 649 889 1053 1145 1133 963 684 382 244 8081
45 S 218 479 939 1587 2476 3529 4674 5807 6770 7454 7836 8081 8081
50 M 130 162 320 500 734 903 990 978 813 530 256 147 6463
50 S 130 292 613 1112 1846 2749 3739 4717 5530 6060 6316 6463 6463
55 M 70 90 201 355 579 753 835 823 663 382 154 80 4985
55 S 70 160 361 716 1295 2048 2883 3706 4369 4751 4905 4985 4985
60 M 32 43 109 224 425 603 680 668 513 247 79 37 3661
60 S 32 75 184 409 833 1436 2116 2784 3298 3544 3624 3661 3661
Corn Growing Degree Days
50 M 214 243 391 526 705 810 879 870 754 558 344 236 6531
50 S 214 457 847 1374 2079 2889 3768 4638 5392 5951 6295 6531 6531
Derived form the 1903-2012 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