COLUMBIA 2SSE, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1893 To Year=1986
Station:(441929) COLUMBIA 2SSE
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 74 77 240 475 770 976 1128 1090 866 543 241 92 6573
40 S 74 151 392 867 1637 2614 3742 4832 5698 6240 6482 6573 6573
45 M 34 36 144 334 616 826 973 935 716 393 142 43 5192
45 S 34 70 214 548 1164 1990 2963 3899 4614 5007 5149 5192 5192
50 M 14 14 77 213 463 676 818 780 566 256 74 17 3970
50 S 14 28 105 319 782 1458 2276 3057 3622 3879 3953 3970 3970
55 M 5 5 36 122 319 527 663 625 419 146 32 5 2904
55 S 5 9 46 168 487 1014 1677 2302 2721 2867 2899 2904 2904
60 M 1 1 15 60 192 380 508 471 281 68 11 1 1989
60 S 1 2 17 78 269 649 1157 1628 1909 1977 1988 1989 1989
Corn Growing Degree Days
50 M 54 59 168 308 493 646 762 736 564 350 169 63 4373
50 S 54 113 281 589 1082 1728 2490 3226 3790 4141 4310 4373 4373
Derived form the 1893-1986 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