IDALIA, COLORADO

Period of Record General Climate Summary - Cooling Degree Days

Station:(054242) IDALIA 4 NNE
From Year=1941 To Year=2012
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	6	31	162	397	612	543	282	64	2	0	2100
57	0	0	3	20	125	341	550	481	234	44	1	0	1798
60	0	0	1	9	79	262	458	390	168	23	0	0	1388
65	0	0	0	1	28	147	307	244	81	5	0	0	812
70	0	0	0	0	6	63	167	118	28	1	0	0	383

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