SUNRISE MTN, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(028326) SUNRISE MOUNTAIN
From Year=1971 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	1285	1142	1116	886	649	383	305	385	470	712	1001	1216	9548
60	1130	1000	961	736	494	236	153	230	320	557	851	1061	7729
57	1037	915	868	646	402	157	74	142	231	465	761	968	6664
55	975	859	806	586	340	113	40	89	174	403	701	906	5990
50	820	717	651	437	200	39	3	12	58	250	551	751	4488

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