WILLCOX, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(029334) WILLCOX
From Year=1898 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	0	3	28	118	317	570	737	670	498	198	17	1	3155
57	0	1	15	82	259	510	675	608	438	149	8	0	2745
60	0	0	4	41	179	420	582	515	349	88	2	0	2181
65	0	0	0	8	73	275	427	360	205	25	0	0	1374
70	0	0	0	1	19	147	272	208	84	4	0	0	734

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