RAINIER OHANAPECOSH, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(456896) RAINIER OHANAPECOSH
From Year=1926 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	2	30	70	352	495	715	742	520	270	27	3	3226
40 S	0	2	32	102	454	949	1663	2406	2926	3196	3223	3226	3226
45 M	0	0	11	29	216	345	560	587	372	147	6	0	2272
45 S	0	0	11	40	256	601	1160	1748	2119	2266	2272	2272	2272
50 M	0	0	1	11	111	202	405	433	232	82	0	0	1478
50 S	0	0	1	12	123	325	731	1163	1396	1478	1478	1478	1478
55 M	0	0	0	3	43	95	258	285	126	40	0	0	850
55 S	0	0	0	3	46	140	399	684	810	850	850	850	850
60 M	0	0	0	1	12	24	134	160	61	11	0	0	402
60 S	0	0	0	1	13	37	171	331	391	402	402	402	402

Corn Growing Degree Days
50 M	0	3	24	52	224	279	427	441	290	181	5	1	1926
50 S	0	3	27	79	303	582	1009	1451	1740	1921	1926	1926	1926

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