SOMERSET, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1945 To Year=2012
Station:(447904) SOMERSET
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 69 70 217 450 718 971 1098 1093 842 496 227 71 6321
40 S 69 139 356 806 1525 2496 3593 4686 5528 6023 6250 6321 6321
45 M 36 30 127 311 564 821 943 938 692 348 129 32 4969
45 S 36 65 193 504 1067 1889 2831 3769 4461 4808 4937 4969 4969
50 M 17 10 67 197 412 671 788 783 542 217 63 13 3779
50 S 17 27 93 290 702 1373 2161 2943 3485 3703 3765 3779 3779
55 M 8 3 29 111 271 522 633 628 394 116 23 5 2742
55 S 8 10 39 150 422 943 1576 2204 2598 2714 2737 2742 2742
60 M 2 0 11 55 155 375 478 473 255 49 5 1 1858
60 S 2 3 14 68 223 598 1076 1548 1803 1852 1857 1858 1858
Corn Growing Degree Days
50 M 52 56 146 278 448 649 749 742 544 308 147 53 4172
50 S 52 108 254 532 980 1629 2378 3120 3664 3972 4119 4172 4172
Derived form the 1945-2012 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