MILLGAP 1 NNE, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1976 To Year=2012
Station:(445595) MILLGAP 1 NNE
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 22 17 97 280 514 732 843 844 614 298 111 26 4397
40 S 22 39 136 415 929 1662 2504 3349 3962 4260 4371 4397 4397
45 M 9 5 45 168 365 582 688 689 465 176 49 10 3250
45 S 9 14 58 226 591 1174 1861 2551 3015 3192 3240 3250 3250
50 M 3 1 17 87 228 432 533 534 320 84 16 3 2258
50 S 3 4 21 108 335 768 1301 1835 2155 2239 2255 2258 2258
55 M 1 0 4 33 120 284 378 379 187 29 3 1 1418
55 S 1 1 4 37 157 442 819 1199 1386 1415 1418 1418 1418
60 M 0 0 0 7 47 151 228 229 80 7 0 0 749
60 S 0 0 0 7 54 205 433 661 742 749 749 749 749
Corn Growing Degree Days
50 M 17 22 89 203 321 461 541 543 382 203 98 21 2899
50 S 17 39 127 330 651 1112 1653 2196 2577 2781 2878 2899 2899
Derived form the 1976-2012 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