OLGA 2 SE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(456096) OLGA 2 SE
From Year=1891 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	71	84	148	258	412	516	620	621	503	334	152	82	3802
40 S	71	155	303	561	973	1489	2109	2730	3233	3568	3720	3802	3802
45 M	16	19	44	118	258	366	465	466	353	184	51	19	2359
45 S	16	35	79	197	455	821	1285	1752	2105	2289	2340	2359	2359
50 M	2	2	6	30	114	216	310	311	204	64	8	2	1267
50 S	2	3	9	39	153	369	679	990	1194	1258	1266	1267	1267
55 M	0	0	0	4	25	79	156	157	74	10	0	0	507
55 S	0	0	0	4	30	109	265	422	497	506	507	507	507
60 M	0	0	0	0	3	13	39	39	13	0	0	0	107
60 S	0	0	0	0	3	16	55	94	107	107	107	107	107

Corn Growing Degree Days
50 M	8	15	42	102	190	254	329	328	242	122	29	9	1670
50 S	8	23	65	167	357	611	941	1269	1511	1632	1661	1670	1670

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