SAN CARLOS RESERVOIR, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(027480) SAN CARLOS RESERVOIR
From Year=1900 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	578	412	298	113	20	0	0	0	1	53	312	577	2364
60	423	273	165	46	6	0	0	0	0	17	180	422	1532
57	330	194	103	24	3	0	0	0	0	8	116	330	1108
55	270	147	71	14	2	0	0	0	0	5	82	270	860
50	133	58	22	3	1	0	0	0	0	1	27	134	380

Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. 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