CORTARO 3 SW, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(022159) CORTARO 3 SW
From Year=1945 To Year=1976
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	453	319	217	68	10	0	0	0	0	29	209	419	1723
60	302	192	111	25	2	0	0	0	0	8	104	272	1015
57	218	129	67	11	1	0	0	0	0	3	63	193	685
55	167	94	45	6	0	0	0	0	0	2	43	146	504
50	75	36	13	1	0	0	0	0	0	0	14	62	200

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