WENATCHEE FAA AP, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(459082) WENATCHEE FAA AP
From Year=1959 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 4 18 142 335 598 804 1046 1022 720 347 49 3 5089
40 S 4 22 164 499 1097 1901 2947 3969 4689 5036 5086 5089 5089
45 M 0 2 51 195 443 654 891 867 570 209 11 1 3894
45 S 0 3 54 248 691 1345 2236 3103 3673 3883 3893 3894 3894
50 M 0 0 12 90 293 504 736 712 422 102 1 0 2872
50 S 0 0 12 102 395 899 1635 2347 2768 2870 2872 2872 2872
55 M 0 0 1 31 165 355 581 557 280 40 0 0 2010
55 S 0 0 1 32 197 552 1133 1690 1970 2010 2010 2010 2010
60 M 0 0 0 7 76 219 427 403 157 11 0 0 1300
60 S 0 0 0 8 83 302 729 1132 1290 1300 1300 1300 1300
Corn Growing Degree Days
50 M 2 10 81 190 346 495 671 657 440 190 18 1 3100
50 S 2 12 92 282 628 1122 1793 2450 2891 3081 3099 3100 3100
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