MARICOPA 4 N, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(025270) MARICOPA 4 N
From Year=1960 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	443	293	176	48	4	0	0	0	0	26	215	462	1668
60	291	164	78	15	0	0	0	0	0	8	106	308	969
57	205	101	40	6	0	0	0	0	0	3	61	220	636
55	154	69	24	3	0	0	0	0	0	2	39	166	456
50	60	19	4	0	0	0	0	0	0	0	10	64	158

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