CHERRY CREEK DAM, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(051547) CHERRY CREEK DAM
From Year=1951 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	28	45	109	244	509	787	1001	938	658	362	105	39	4826
40 S	28	73	182	427	936	1722	2724	3661	4320	4681	4786	4826	4826
45 M	6	15	47	140	363	637	846	783	512	233	45	12	3639
45 S	6	21	68	208	571	1208	2054	2837	3349	3583	3627	3639	3639
50 M	1	3	14	66	229	489	691	628	372	127	12	2	2634
50 S	1	3	17	84	313	802	1493	2121	2492	2619	2631	2634	2634
55 M	0	0	3	23	120	345	537	473	241	52	2	0	1796
55 S	0	0	3	27	147	491	1028	1501	1742	1794	1795	1796	1796
60 M	0	0	0	5	46	211	383	321	130	13	0	0	1109
60 S	0	0	0	5	51	262	645	966	1096	1109	1109	1109	1109

Corn Growing Degree Days
50 M	48	63	118	201	344	491	618	587	431	288	115	57	3361
50 S	48	111	229	430	773	1264	1883	2470	2901	3189	3304	3361	3361

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