ELKWOOD 7 SE, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1940 To Year=1983
Station:(442729) ELKWOOD 7 SE
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 61 58 204 458 734 938 1091 1049 811 499 226 69 6199
40 S 61 120 323 782 1516 2454 3545 4593 5404 5903 6130 6199 6199
45 M 30 26 118 320 580 788 936 894 661 352 133 31 4867
45 S 30 55 174 493 1073 1861 2797 3690 4351 4703 4837 4867 4867
50 M 13 10 64 202 427 638 781 739 512 221 68 10 3684
50 S 13 22 86 287 715 1353 2134 2872 3384 3605 3674 3684 3684
55 M 4 3 31 115 285 488 626 584 367 121 28 3 2655
55 S 4 7 38 153 438 926 1553 2136 2503 2624 2652 2655 2655
60 M 1 1 12 58 164 341 471 429 236 53 9 1 1775
60 S 1 2 14 72 236 577 1048 1476 1712 1765 1775 1775 1775
Corn Growing Degree Days
50 M 40 43 145 300 472 620 736 706 526 315 145 45 4094
50 S 40 84 228 528 1000 1620 2356 3062 3588 3903 4048 4094 4094
Derived form the 1940-1983 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