MARTINSBURG FAA AP, WEST VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1926 To Year=2012
Station:(465707) MARTINSBURG FAA AP
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 35 39 155 387 699 936 1107 1052 797 463 186 48 5905
40 S 35 74 229 616 1315 2251 3358 4410 5207 5671 5857 5905 5905
45 M 14 16 83 255 544 786 952 897 647 318 102 19 4633
45 S 14 30 113 368 912 1699 2651 3548 4195 4513 4615 4633 4633
50 M 5 5 40 149 393 636 797 742 498 192 47 6 3510
50 S 5 10 50 199 592 1228 2025 2767 3265 3457 3504 3510 3510
55 M 2 1 17 77 254 487 642 587 354 99 17 2 2538
55 S 2 3 19 96 350 837 1479 2066 2420 2519 2536 2538 2538
60 M 0 0 6 34 142 340 487 432 222 41 5 1 1710
60 S 0 0 6 40 182 522 1009 1441 1663 1704 1709 1710 1710
Corn Growing Degree Days
50 M 23 29 103 235 430 614 744 704 508 282 111 30 3813
50 S 23 52 156 390 820 1434 2178 2883 3391 3672 3783 3813 3813
Derived form the 1926-2012 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