WAWAWAI 2 NW, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(459024) WAWAWAI
From Year=1927 To Year=1965
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	51	79	215	435	656	830	1100	1039	792	492	142	70	5900
40 S	51	130	345	779	1436	2266	3365	4404	5196	5688	5829	5900	5900
45 M	14	23	100	287	502	680	945	884	642	341	58	21	4496
45 S	14	37	137	424	926	1606	2551	3435	4076	4417	4475	4496	4496
50 M	2	4	32	157	350	530	790	729	493	204	12	4	3307
50 S	2	6	38	195	545	1075	1865	2594	3086	3290	3302	3307	3307
55 M	0	0	8	69	210	380	635	574	346	100	1	1	2324
55 S	0	0	8	77	287	667	1302	1876	2222	2323	2324	2324	2324
60 M	0	0	1	22	102	236	480	420	212	37	0	0	1510
60 S	0	0	1	23	126	362	842	1262	1474	1510	1510	1510	1510

Corn Growing Degree Days
50 M	17	32	111	255	397	515	684	647	492	279	52	20	3502
50 S	17	48	160	415	812	1328	2012	2659	3150	3430	3482	3502	3502

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