DATELAND WHITEWING RCH, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(022434) DATELAND WHITEWING RANC
From Year=1972 To Year=2010
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	333	211	131	37	4	0	0	0	0	16	145	360	1237
60	187	98	46	10	0	0	0	0	0	4	59	210	614
57	116	53	19	3	0	0	0	0	0	1	28	131	351
55	77	32	9	1	0	0	0	0	0	1	16	89	225
50	20	7	1	0	0	0	0	0	0	0	2	27	58

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