CUSHMAN POWERHOUSE 2, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(451939) CUSHMAN POWERHOUSE 2
From Year=1973 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	69	79	162	270	461	591	748	753	591	354	136	58	4272
40 S	69	148	311	581	1042	1632	2380	3133	3723	4078	4214	4272	4272
45 M	16	18	54	136	306	441	593	598	441	204	48	13	2867
45 S	16	34	88	224	531	971	1564	2162	2603	2807	2854	2867	2867
50 M	1	2	9	50	164	291	438	443	291	82	9	1	1780
50 S	1	3	11	61	225	516	954	1397	1688	1770	1779	1780	1780
55 M	0	0	1	13	65	150	283	288	149	19	0	0	968
55 S	0	0	1	14	78	229	512	800	949	968	968	968	968
60 M	0	0	0	2	18	54	139	140	48	1	0	0	402
60 S	0	0	0	2	20	74	213	353	401	402	402	402	402

Corn Growing Degree Days
50 M	9	19	67	134	242	322	441	447	325	155	30	7	2196
50 S	9	28	94	228	470	792	1232	1679	2004	2159	2189	2196	2196

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