LONGMIRE RAINIER NPS, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(454764) LONGMIRE RAINIER NPS
From Year=1978 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	4	8	36	106	270	425	627	644	459	207	29	2	2817
40 S	4	12	49	154	425	850	1477	2121	2579	2786	2815	2817	2817
45 M	0	1	8	45	153	281	473	489	313	106	5	0	1874
45 S	0	2	10	55	208	489	962	1451	1764	1869	1874	1874	1874
50 M	0	0	1	15	77	161	324	336	187	45	0	0	1146
50 S	0	0	1	17	93	255	578	914	1101	1146	1146	1146	1146
55 M	0	0	0	4	32	79	192	197	96	15	0	0	617
55 S	0	0	0	4	36	116	308	505	602	617	617	617	617
60 M	0	0	0	1	11	31	93	91	38	4	0	0	269
60 S	0	0	0	1	12	43	136	228	265	269	269	269	269

Corn Growing Degree Days
50 M	1	5	27	70	153	235	364	382	272	114	6	0	1628
50 S	1	5	32	102	255	490	854	1236	1508	1622	1628	1628	1628

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