SPICER, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(057848) SPICER
From Year=1948 To Year=2003
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	0	0	2	31	173	372	563	508	294	82	4	0	2029
40 S	0	0	2	33	206	578	1141	1649	1943	2025	2029	2029	2029
45 M	0	0	0	7	73	231	408	354	164	24	0	0	1262
45 S	0	0	0	7	81	312	720	1073	1237	1261	1262	1262	1262
50 M	0	0	0	1	18	110	254	204	65	3	0	0	655
50 S	0	0	0	1	19	129	383	586	651	655	655	655	655
55 M	0	0	0	0	2	32	111	75	14	0	0	0	234
55 S	0	0	0	0	2	34	145	220	234	234	234	234	234
60 M	0	0	0	0	0	4	23	12	1	0	0	0	40
60 S	0	0	0	0	0	4	27	39	40	40	40	40	40

Corn Growing Degree Days
50 M	0	0	3	44	163	293	403	373	260	119	11	0	1671
50 S	0	0	3	47	210	504	907	1280	1540	1660	1671	1671	1671

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