WENATCHEE EXP STN, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(459079) WENATCHEE EXP STN
From Year=1950 To Year=1997
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 6 19 134 330 586 770 984 962 650 305 46 4 4795
40 S 6 24 158 488 1074 1844 2828 3789 4440 4745 4790 4795 4795
45 M 0 2 43 190 432 620 829 807 500 174 11 1 3608
45 S 0 2 45 235 667 1286 2115 2922 3422 3596 3608 3608 3608
50 M 0 0 8 87 281 470 674 652 353 77 2 0 2605
50 S 0 0 8 96 377 847 1521 2173 2526 2603 2605 2605 2605
55 M 0 0 1 28 153 321 519 497 217 26 0 0 1762
55 S 0 0 1 29 182 503 1022 1519 1736 1762 1762 1762 1762
60 M 0 0 0 7 65 187 366 343 108 5 0 0 1082
60 S 0 0 0 7 73 260 626 969 1076 1082 1082 1082 1082
Corn Growing Degree Days
50 M 4 14 101 217 363 476 616 601 419 217 24 3 3055
50 S 4 17 118 335 698 1174 1790 2391 2810 3028 3052 3055 3055
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