LAKE WENATCHEE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(454446) LAKE WENATCHEE
From Year=1894 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	0	0	4	147	372	529	714	842	392	202	9	0	3213
40 S	0	0	5	152	524	1053	1767	2609	3001	3203	3213	3213	3213
45 M	0	0	0	71	237	379	559	687	247	98	1	0	2279
45 S	0	0	0	71	308	686	1246	1933	2179	2278	2279	2279	2279
50 M	0	0	0	30	132	240	405	532	125	40	0	0	1504
50 S	0	0	0	30	162	401	807	1338	1464	1504	1504	1504	1504
55 M	0	0	0	10	60	125	256	381	55	15	0	0	903
55 S	0	0	0	10	70	195	451	832	887	903	903	903	903
60 M	0	0	0	2	22	51	130	252	16	6	0	0	480
60 S	0	0	0	2	25	76	206	458	474	480	480	480	480

Corn Growing Degree Days
50 M	0	0	10	112	237	317	443	585	253	160	5	0	2122
50 S	0	0	11	123	359	677	1120	1704	1957	2118	2122	2122	2122

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