SPRUCE KNOB, WEST VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1951 To Year=1988
Station:(468433) SPRUCE KNOB
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 17 24 79 253 499 696 838 812 607 334 131 40 4332
40 S 17 40 120 372 872 1568 2406 3219 3826 4161 4292 4332 4332
45 M 5 7 38 159 355 547 683 657 459 215 67 16 3208
45 S 5 12 50 209 564 1111 1795 2452 2911 3126 3193 3208 3208
50 M 1 1 14 88 227 401 529 503 317 121 26 5 2234
50 S 1 2 16 104 331 733 1261 1764 2082 2203 2229 2234 2234
55 M 0 0 4 41 122 263 375 350 193 54 8 1 1411
55 S 0 0 4 45 167 430 805 1154 1347 1401 1410 1411 1411
60 M 0 0 0 14 50 142 227 204 96 17 1 0 752
60 S 0 0 0 15 64 206 434 638 733 750 752 752 752
Corn Growing Degree Days
50 M 9 13 49 147 284 423 534 512 364 194 71 20 2618
50 S 9 22 71 218 502 925 1459 1970 2334 2528 2598 2618 2618
Derived form the 1951-1988 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