SKAMANIA FISH HATCHERY, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(457696) SKAMANIA FISH HATCHERY
From Year=1965 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 45 74 145 233 416 556 725 722 559 336 127 40 3979
40 S 45 120 265 498 914 1470 2195 2917 3476 3812 3939 3979 3979
45 M 8 18 52 113 264 406 570 567 409 193 44 6 2652
45 S 8 26 79 192 456 862 1432 1999 2408 2601 2645 2652 2652
50 M 0 3 12 43 139 259 415 412 263 84 9 0 1639
50 S 0 3 15 58 197 455 870 1283 1546 1629 1639 1639 1639
55 M 0 0 1 12 61 133 263 260 136 25 1 0 893
55 S 0 0 1 14 74 208 471 731 867 891 893 893 893
60 M 0 0 0 2 21 55 134 129 53 5 0 0 400
60 S 0 0 0 2 23 78 212 342 395 400 400 400 400
Corn Growing Degree Days
50 M 12 38 91 148 254 330 447 453 362 211 52 10 2407
50 S 12 50 141 288 543 872 1319 1772 2134 2345 2397 2407 2407
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