MOUNT ADAMS RANGER STN, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(455659) MOUNT ADAMS RANGER STN
From Year=1909 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 4 9 54 179 399 572 788 758 519 245 40 7 3575
40 S 4 13 67 246 645 1217 2006 2763 3282 3527 3568 3575 3575
45 M 0 1 14 81 253 423 633 603 371 125 9 1 2513
45 S 0 1 15 96 349 771 1405 2007 2379 2504 2512 2513 2513
50 M 0 0 2 28 135 277 478 448 234 49 1 0 1652
50 S 0 0 2 30 165 442 920 1368 1602 1651 1652 1652 1652
55 M 0 0 0 7 59 151 326 296 120 14 0 0 973
55 S 0 0 0 7 66 217 542 839 959 973 973 973 973
60 M 0 0 0 1 18 66 187 163 46 2 0 0 484
60 S 0 0 0 1 20 85 273 436 482 484 484 484 484
Corn Growing Degree Days
50 M 2 8 49 138 271 362 503 490 357 172 17 2 2372
50 S 2 10 59 197 468 830 1334 1824 2182 2353 2370 2372 2372
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