SAN CARLOS, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(027475) SAN CARLOS
From Year=1912 To Year=1977
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	642	456	369	153	35	0	0	0	1	79	378	627	2741
60	488	316	223	61	10	0	0	0	0	25	236	472	1831
57	395	236	147	31	4	0	0	0	0	11	159	380	1362
55	333	186	106	19	2	0	0	0	0	6	116	319	1086
50	191	85	38	5	0	0	0	0	0	1	43	176	539

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