IDALIA, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(054242) IDALIA 4 NNE
From Year=1941 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1129	960	784	519	244	56	5	12	123	441	803	1102	6178
60	974	819	630	376	141	21	1	3	60	303	653	947	4928
57	881	734	539	297	93	11	0	1	36	232	564	854	4242
55	819	677	480	248	68	7	0	1	25	190	505	792	3813
50	664	538	342	148	28	2	0	0	8	108	370	638	2847

Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. 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