DARRINGTON RS, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(451992) DARRINGTON RANGER STN
From Year=1911 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 19 38 111 239 445 573 738 737 546 303 77 21 3847
40 S 19 57 168 407 852 1425 2163 2900 3446 3749 3826 3847 3847
45 M 3 7 38 117 293 423 583 582 396 165 20 4 2632
45 S 3 9 48 165 458 881 1464 2046 2443 2608 2629 2632 2632
50 M 0 1 9 45 162 275 428 427 251 65 3 0 1667
50 S 0 1 10 55 217 492 920 1348 1599 1664 1667 1667 1667
55 M 0 0 2 13 72 145 275 275 127 17 0 0 927
55 S 0 0 2 15 87 232 507 782 909 926 927 927 927
60 M 0 0 0 3 26 60 142 139 47 3 0 0 420
60 S 0 0 0 3 29 89 231 371 418 420 420 420 420
Corn Growing Degree Days
50 M 5 23 71 144 255 320 447 448 324 165 27 4 2234
50 S 5 28 99 243 499 819 1266 1715 2038 2203 2230 2234 2234
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 Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu