SUNSET CRATER NM, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(028329) SUNSET CRATER NATL MONU
From Year=1969 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	1146	954	870	640	405	148	36	69	239	589	884	1135	7114
60	991	813	715	491	261	63	3	12	116	435	734	980	5611
57	898	728	622	402	184	31	0	3	65	345	644	887	4808
55	836	671	560	345	141	18	0	1	41	287	584	825	4308
50	681	530	407	213	61	4	0	0	10	160	435	670	3172

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