RIDGWAY, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(057020) RIDGWAY
From Year=1982 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	1320	1075	931	694	452	204	67	98	312	664	976	1309	8104
60	1165	933	776	544	303	90	11	19	175	509	826	1154	6507
57	1072	849	683	455	220	48	2	6	109	417	736	1061	5658
55	1010	792	621	396	170	30	0	3	76	357	676	999	5131
50	855	651	467	256	80	8	0	0	27	217	527	844	3932

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