ABERDEEN, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(450008) ABERDEEN
From Year=1931 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 88 105 163 259 411 521 635 654 572 395 179 96 4075
40 S 88 192 355 614 1024 1546 2181 2834 3406 3801 3979 4075 4075
45 M 22 31 57 125 257 371 480 499 422 243 70 26 2602
45 S 22 53 110 235 491 863 1343 1841 2263 2506 2576 2602 2602
50 M 2 4 12 43 121 222 325 344 272 112 14 2 1474
50 S 2 6 19 61 182 404 729 1073 1346 1457 1471 1474 1474
55 M 0 0 1 12 41 89 172 190 133 33 1 0 672
55 S 0 0 2 13 55 143 315 505 638 671 672 672 672
60 M 0 0 0 2 13 23 52 60 42 6 0 0 197
60 S 0 0 0 2 15 38 90 150 192 197 197 197 197
Corn Growing Degree Days
50 M 12 30 60 109 189 252 337 352 307 186 51 13 1898
50 S 12 42 102 212 400 652 989 1341 1648 1833 1884 1898 1898
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