CASTLE VALLEY, UTAH

Period of Record General Climate Summary - Heating Degree Days

Station:(421241) CASTLE VALLEY INST
From Year=1978 To Year=2009
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1087	802	597	339	122	14	0	1	53	308	703	1050	5076
60	932	661	445	213	54	3	0	0	20	181	554	895	3958
57	839	576	357	150	30	1	0	0	10	121	465	802	3350
55	777	520	300	115	18	0	0	0	6	89	406	740	2971
50	622	380	174	51	4	0	0	0	1	37	269	585	2123

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