HOLLY, COLORADO

Period of Record General Climate Summary - Cooling Degree Days

Station:(054076) HOLLY
From Year=1894 To Year=2009
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	0	0	12	75	261	534	717	657	386	110	2	0	2755
57	0	0	7	52	212	475	655	595	332	80	1	0	2408
60	0	0	3	27	146	388	562	502	254	45	0	0	1928
65	0	0	1	7	65	251	408	350	142	13	0	0	1236
70	0	0	0	1	20	135	258	205	61	2	0	0	682

Cooling 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.
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