WILSON CREEK, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(459327) WILSON CREEK
From Year=1948 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 6 20 91 272 545 754 964 910 641 292 48 5 4548
40 S 6 26 117 389 934 1687 2652 3561 4203 4494 4543 4548 4548
45 M 1 4 27 145 392 604 809 755 492 163 10 1 3401
45 S 1 5 32 177 568 1172 1982 2736 3228 3390 3400 3401 3401
50 M 0 0 5 61 249 454 654 600 345 72 1 0 2441
50 S 0 1 6 67 315 769 1424 2023 2369 2440 2441 2441 2441
55 M 0 0 0 19 133 308 500 445 212 22 0 0 1639
55 S 0 0 0 20 153 460 960 1405 1617 1639 1639 1639 1639
60 M 0 0 0 5 56 179 348 295 106 5 0 0 992
60 S 0 0 0 5 60 239 587 882 988 992 992 992 992
Corn Growing Degree Days
50 M 2 12 71 203 370 480 589 561 432 220 25 1 2966
50 S 2 14 85 288 658 1138 1727 2288 2720 2940 2965 2966 2966
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