CHENEY, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(451362) CHENEY
From Year=1899 To Year=1955
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	9	66	238	461	628	907	837	620	291	43	9	4113
40 S	4	13	78	317	778	1405	2313	3150	3770	4061	4104	4113	4113
45 M	0	1	21	123	310	478	752	682	471	168	9	2	3017
45 S	0	1	22	145	455	933	1685	2367	2838	3006	3015	3017	3017
50 M	0	0	4	52	178	329	597	527	328	80	1	0	2097
50 S	0	0	4	56	234	563	1161	1688	2016	2096	2097	2097	2097
55 M	0	0	0	16	83	193	442	373	202	28	0	0	1338
55 S	0	0	0	16	99	292	735	1108	1310	1338	1338	1338	1338
60 M	0	0	0	4	28	90	293	227	108	8	0	0	758
60 S	0	0	0	4	32	122	415	642	751	758	758	758	758

Corn Growing Degree Days
50 M	2	7	52	180	303	401	571	534	403	196	29	4	2681
50 S	2	9	61	241	544	944	1516	2050	2453	2648	2677	2681	2681

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