STEWART MOUNTAIN, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(028214) STEWART MOUNTAIN
From Year=1939 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	35	64	168	343	624	873	1069	1020	822	508	162	33	5722
57	20	40	127	288	562	813	1007	958	762	447	121	17	5163
60	6	16	77	211	471	723	914	865	672	359	71	6	4391
65	0	2	24	105	322	573	759	710	523	222	21	0	3261
70	0	0	4	37	188	423	604	555	375	108	3	0	2298

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