MOUNT WEATHER, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1915 To Year=2012
Station:(445851) MOUNT WEATHER
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 28 32 117 318 614 850 1001 959 739 429 163 41 5290
40 S 28 60 177 494 1108 1958 2959 3918 4657 5086 5249 5290 5290
45 M 10 13 61 203 461 700 846 804 589 288 86 16 4077
45 S 10 23 84 287 748 1447 2293 3097 3687 3975 4061 4077 4077
50 M 4 4 29 117 316 550 691 649 441 170 37 6 3012
50 S 4 7 37 154 469 1019 1710 2359 2800 2969 3007 3012 3012
55 M 1 1 13 60 190 402 536 494 299 84 13 2 2094
55 S 1 2 14 74 265 666 1202 1696 1996 2080 2092 2094 2094
60 M 0 0 4 27 96 261 381 340 175 34 3 0 1323
60 S 0 0 4 32 128 389 770 1111 1286 1320 1323 1323 1323
Corn Growing Degree Days
50 M 15 18 66 175 352 551 681 644 453 223 76 20 3272
50 S 15 32 98 273 625 1176 1857 2501 2954 3177 3252 3272 3272
Derived form the 1915-2012 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