ANVIL RCH, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(020287) ANVIL RANCH
From Year=1942 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	490	364	262	104	17	0	0	0	0	47	258	485	2028
60	337	230	140	42	4	0	0	0	0	17	141	333	1243
57	249	159	86	22	1	0	0	0	0	8	91	247	863
55	195	119	59	13	0	0	0	0	0	4	65	195	651
50	90	49	19	2	0	0	0	0	0	1	23	92	276

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