WENATCHEE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(459074) WENATCHEE
From Year=1877 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	16	141	366	635	819	1054	1020	729	366	61	5	5215
40 S	4	20	161	527	1162	1981	3035	4055	4783	5149	5209	5215	5215
45 M	0	2	50	222	480	669	899	865	579	223	14	1	4003
45 S	0	2	52	274	754	1423	2322	3187	3765	3988	4002	4003	4003
50 M	0	0	11	108	328	519	744	710	429	109	2	0	2959
50 S	0	0	12	119	447	966	1710	2420	2849	2958	2959	2959	2959
55 M	0	0	2	39	192	369	589	555	285	40	0	0	2072
55 S	0	0	2	41	233	602	1192	1746	2032	2072	2072	2072	2072
60 M	0	0	0	10	92	228	435	400	159	11	0	0	1335
60 S	0	0	0	10	102	330	765	1165	1325	1335	1335	1335	1335

Corn Growing Degree Days
50 M	2	10	90	219	376	507	677	654	451	214	25	3	3228
50 S	2	12	102	321	697	1204	1881	2535	2986	3200	3225	3228	3228

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