WITTMANN 4SW, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(029464) WITTMANN
From Year=1923 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	22	49	147	346	626	869	1118	1061	847	513	165	31	5795
57	12	29	108	291	565	809	1056	999	787	452	124	16	5249
60	3	11	62	215	474	719	963	906	697	362	73	5	4491
65	0	1	17	109	328	569	808	751	548	222	22	0	3376
70	0	0	3	42	196	420	653	596	399	108	3	0	2421

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