DOUGLAS FAA AP, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(022664) DOUGLAS FAA AP
From Year=1948 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	2	11	58	190	422	675	758	700	561	284	41	3	3704
57	1	4	34	144	362	615	696	638	501	228	22	1	3245
60	0	1	12	83	273	525	603	545	411	152	6	0	2612
65	0	0	1	21	140	376	448	390	262	56	0	0	1694
70	0	0	0	3	46	230	293	235	125	10	0	0	943

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