WENATCHEE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(459074) WENATCHEE
From Year=1877 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	16	143	371	637	821	1049	1015	724	366	60	6	5212
40 S	4	20	163	534	1171	1992	3041	4056	4780	5146	5207	5212	5212
45 M	0	2	52	226	482	671	894	860	574	223	14	1	3998
45 S	0	2	54	280	762	1433	2327	3187	3761	3984	3998	3998	3998
50 M	0	0	12	110	330	521	739	705	425	109	2	0	2953
50 S	0	0	12	122	452	974	1712	2417	2842	2951	2953	2953	2953
55 M	0	0	2	40	194	372	584	550	281	41	0	0	2064
55 S	0	0	2	42	236	608	1192	1742	2023	2064	2064	2064	2064
60 M	0	0	0	10	93	230	429	396	156	11	0	0	1325
60 S	0	0	0	10	103	333	763	1159	1315	1325	1325	1325	1325

Corn Growing Degree Days
50 M	2	10	91	223	378	509	673	650	449	215	25	3	3229
50 S	2	12	104	326	705	1214	1887	2537	2986	3201	3226	3229	3229

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