ELECTRON HEADWORKS, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(452493) ELECTRON HEADWORKS
From Year=1943 To Year=1980
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 21 31 51 137 328 464 619 596 439 223 62 29 2999
40 S 21 52 103 239 568 1032 1650 2246 2685 2908 2970 2999 2999
45 M 3 6 12 50 186 314 464 441 291 105 15 5 1891
45 S 3 9 21 71 257 571 1035 1476 1767 1871 1886 1891 1891
50 M 0 1 1 13 82 174 309 286 155 34 2 0 1058
50 S 0 1 2 16 98 272 581 867 1023 1056 1058 1058 1058
55 M 0 0 0 2 25 74 163 142 57 6 0 0 471
55 S 0 0 0 2 28 102 265 407 465 471 471 471 471
60 M 0 0 0 0 6 22 60 48 13 1 0 0 151
60 S 0 0 0 0 6 28 89 137 150 151 151 151 151
Corn Growing Degree Days
50 M 4 12 32 88 201 263 376 356 263 118 20 5 1736
50 S 4 15 47 135 335 598 974 1331 1593 1711 1731 1736 1736
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