BOYKINS, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1954 To Year=1978
Station:(440956) BOYKINS
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 120 140 323 594 835 1030 1177 1154 943 618 337 154 7425
40 S 120 260 583 1176 2012 3042 4219 5373 6315 6934 7271 7425 7425
45 M 63 75 204 445 680 880 1022 999 793 466 219 83 5929
45 S 63 138 342 787 1467 2347 3369 4368 5161 5627 5846 5929 5929
50 M 30 35 115 308 526 730 867 844 643 322 126 39 4586
50 S 30 65 181 489 1015 1744 2611 3456 4098 4421 4546 4586 4586
55 M 11 14 58 196 374 580 712 689 493 199 62 15 3403
55 S 11 25 84 280 654 1234 1946 2635 3128 3326 3388 3403 3403
60 M 3 4 24 111 237 431 557 534 346 103 26 5 2380
60 S 3 7 31 143 379 810 1367 1901 2247 2350 2376 2380 2380
Corn Growing Degree Days
50 M 78 95 210 387 543 690 801 789 628 404 223 100 4949
50 S 78 173 383 770 1313 2003 2804 3593 4221 4626 4849 4949 4949
Derived form the 1954-1978 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