RIDGWAY, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(057020) RIDGWAY
From Year=1982 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1321	1075	942	704	457	215	78	104	314	666	991	1308	8177
60	1166	934	787	554	308	95	13	20	177	511	841	1153	6561
57	1073	849	694	464	224	50	2	7	111	419	751	1060	5704
55	1011	793	632	405	174	32	0	3	78	358	691	998	5174
50	856	651	478	264	82	8	0	0	27	216	541	843	3967

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 Jul 28, 2006
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