SKAMANIA FISH HATCHERY, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(457696) SKAMANIA FISH HATCHERY
From Year=1965 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 45 76 151 236 418 556 718 719 556 338 129 41 3985
40 S 45 122 273 509 927 1483 2201 2921 3476 3814 3944 3985 3985
45 M 8 19 55 115 266 406 563 564 406 195 45 6 2650
45 S 8 28 83 198 464 870 1433 1997 2403 2599 2644 2650 2650
50 M 0 3 12 44 140 259 408 409 260 86 9 0 1631
50 S 0 3 16 60 200 459 867 1276 1536 1622 1631 1631 1631
55 M 0 0 1 13 62 134 257 257 133 26 1 0 883
55 S 0 0 2 14 76 210 466 723 856 882 883 883 883
60 M 0 0 0 2 21 55 129 127 51 5 0 0 391
60 S 0 0 0 2 23 79 207 335 386 391 391 391 391
Corn Growing Degree Days
50 M 13 39 96 150 257 333 444 453 362 215 53 10 2424
50 S 13 51 147 297 555 888 1332 1784 2146 2361 2414 2424 2424
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