NASELLE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(455774) NASELLE
From Year=1929 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 52 62 118 199 321 465 608 704 603 338 51 31 3550
40 S 52 115 232 431 751 1216 1824 2528 3130 3468 3519 3550 3550
45 M 11 7 24 78 170 315 453 549 453 187 7 6 2258
45 S 11 17 41 119 289 604 1057 1606 2058 2245 2252 2258 2258
50 M 1 0 0 22 52 167 298 394 303 75 0 0 1310
50 S 1 1 1 23 75 241 539 933 1236 1310 1310 1310 1310
55 M 0 0 0 5 9 51 144 239 158 10 0 0 615
55 S 0 0 0 5 14 64 209 448 606 615 615 615 615
60 M 0 0 0 0 1 11 32 97 62 0 0 0 202
60 S 0 0 0 0 1 12 44 140 202 202 202 202 202
Corn Growing Degree Days
50 M 7 16 33 92 177 234 335 420 368 168 24 4 1876
50 S 7 23 56 147 325 559 894 1314 1681 1849 1872 1876 1876
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