NASELLE 2 ENE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(455774) NASELLE
From Year=1929 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	52	62	118	199	321	465	608	704	603	338	51	31	3550
40 S	52	115	232	431	751	1216	1824	2528	3130	3468	3519	3550	3550
45 M	11	7	24	78	170	315	453	549	453	187	7	6	2258
45 S	11	17	41	119	289	604	1057	1606	2058	2245	2252	2258	2258
50 M	1	0	0	22	52	167	298	394	303	75	0	0	1310
50 S	1	1	1	23	75	241	539	933	1236	1310	1310	1310	1310
55 M	0	0	0	5	9	51	144	239	158	10	0	0	615
55 S	0	0	0	5	14	64	209	448	606	615	615	615	615
60 M	0	0	0	0	1	11	32	97	62	0	0	0	202
60 S	0	0	0	0	1	12	44	140	202	202	202	202	202

Corn Growing Degree Days
50 M	7	16	33	92	177	234	335	420	368	168	24	4	1876
50 S	7	23	56	147	325	559	894	1314	1681	1849	1872	1876	1876

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