ABERDEEN 20 NNE WISHKA, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(450013) ABERDEEN 20 NNE WISHKA
From Year=1931 To Year=2004
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 47 63 109 197 370 507 649 661 521 299 110 48 3581
40 S 47 109 218 416 786 1293 1942 2603 3124 3423 3533 3581 3581
45 M 9 14 30 85 221 357 494 506 371 157 33 9 2286
45 S 9 22 53 138 360 717 1211 1717 2088 2245 2278 2286 2286
50 M 0 1 3 27 105 211 339 351 224 57 4 0 1324
50 S 0 2 5 32 137 348 687 1038 1263 1319 1323 1324 1324
55 M 0 0 0 5 40 94 191 199 98 10 0 0 637
55 S 0 0 0 5 45 139 329 528 626 637 637 637 637
60 M 0 0 0 0 11 33 78 78 25 0 0 0 225
60 S 0 0 0 0 12 44 122 200 225 225 225 225 225
Corn Growing Degree Days
50 M 3 17 48 97 194 265 366 374 283 132 23 4 1807
50 S 3 21 69 166 360 626 991 1365 1648 1780 1803 1807 1807
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 Jul 28, 2006
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