RAINIER LONGMIRE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(456894) RAINIER LONGMIRE
From Year=1931 To Year=1978
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	2	9	28	95	281	439	648	634	475	241	40	5	2896
40 S	2	11	39	134	415	854	1502	2135	2610	2851	2892	2896	2896
45 M	0	1	7	36	159	293	493	479	328	129	10	0	1936
45 S	0	2	8	45	204	497	990	1469	1797	1926	1936	1936	1936
50 M	0	0	1	11	75	168	340	326	198	56	1	0	1177
50 S	0	0	1	12	87	255	595	921	1120	1175	1177	1177	1177
55 M	0	0	0	2	28	79	201	188	100	18	0	0	617
55 S	0	0	0	2	30	110	311	498	599	617	617	617	617
60 M	0	0	0	0	8	29	95	84	39	4	0	0	259
60 S	0	0	0	0	8	37	132	216	255	259	259	259	259

Corn Growing Degree Days
50 M	1	7	24	71	179	250	388	373	278	136	17	1	1725
50 S	1	8	32	103	283	533	920	1294	1571	1707	1724	1725	1725

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 Jul 28, 2006
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