GLENWOOD #2, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(453184) GLENWOOD 2
From Year=1979 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	11	11	53	137	319	470	666	668	432	178	42	6	2993
40 S	11	22	75	212	531	1002	1667	2335	2767	2945	2987	2993	2993
45 M	1	2	11	58	187	323	511	513	288	79	11	0	1984
45 S	1	3	14	72	259	582	1093	1606	1893	1972	1983	1984	1984
50 M	0	0	2	18	92	190	358	360	162	27	2	0	1210
50 S	0	0	2	20	111	302	660	1020	1181	1208	1210	1210	1210
55 M	0	0	0	4	38	92	218	217	72	6	0	0	645
55 S	0	0	0	4	42	133	351	567	639	645	645	645	645
60 M	0	0	0	0	12	35	105	104	21	1	0	0	278
60 S	0	0	0	0	13	47	152	256	277	278	278	278	278

Corn Growing Degree Days
50 M	4	9	47	116	240	323	453	468	352	176	22	1	2209
50 S	4	13	60	176	416	739	1191	1659	2010	2186	2208	2209	2209

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