ARIZONA SONORA DESERT M, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(020415) ARIZONA SONORA DESERT M
From Year=1962 To Year=1973
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	55	118	204	343	625	859	1039	933	815	525	214	60	5789
57	32	83	163	288	564	799	977	871	755	464	169	38	5203
60	13	43	110	211	472	709	884	778	665	377	110	16	4388
65	1	10	45	104	323	559	729	623	515	241	40	2	3193
70	0	0	12	37	189	410	574	468	366	124	7	0	2186

Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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