STAMPEDE PASS, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(458009) STAMPEDE PASS WSCMO
From Year=1944 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	3	2	11	42	159	287	503	514	351	133	9	2	2016
40 S	3	5	16	58	217	504	1007	1521	1872	2005	2014	2016	2016
45 M	1	0	2	16	83	171	353	362	223	63	2	0	1276
45 S	1	1	4	19	103	273	626	988	1211	1274	1276	1276	1276
50 M	0	0	0	4	37	91	222	227	126	25	0	0	733
50 S	0	0	0	5	42	133	355	582	708	733	733	733	733
55 M	0	0	0	1	15	42	122	125	61	8	0	0	373
55 S	0	0	0	1	15	58	180	304	365	373	373	373	373
60 M	0	0	0	0	5	16	57	59	23	1	0	0	161
60 S	0	0	0	0	5	21	78	137	160	161	161	161	161

Corn Growing Degree Days
50 M	1	1	3	19	74	135	264	265	165	49	1	0	976
50 S	1	1	5	23	98	233	496	761	926	975	976	976	976

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