ABERDEEN, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(450008) ABERDEEN
From Year=1891 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 79 98 157 249 398 510 626 647 558 389 174 86 3972
40 S 79 177 335 584 982 1492 2117 2764 3322 3711 3885 3972 3972
45 M 20 28 55 118 244 360 471 492 408 237 68 22 2522
45 S 20 47 102 220 464 824 1295 1787 2195 2432 2500 2522 2522
50 M 2 3 13 40 112 211 316 337 259 107 14 2 1416
50 S 2 5 18 58 170 381 697 1034 1294 1401 1414 1416 1416
55 M 0 0 2 11 38 83 164 183 124 31 1 0 636
55 S 0 0 2 13 51 134 298 481 605 635 636 636 636
60 M 0 0 0 2 12 22 50 58 38 5 0 0 187
60 S 0 0 0 3 14 36 86 144 182 187 187 187 187
Corn Growing Degree Days
50 M 11 27 61 110 186 248 332 350 299 182 50 12 1868
50 S 11 38 99 209 395 643 975 1325 1624 1807 1856 1868 1868
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