GANADO, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(023303) GANADO
From Year=1929 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	1168	908	806	548	304	76	3	9	113	438	807	1106	6287
60	1013	766	651	399	170	23	0	1	39	288	657	951	4958
57	920	682	558	313	108	9	0	0	18	206	567	858	4239
55	858	625	496	259	77	4	0	0	10	159	508	796	3793
50	703	484	345	144	30	1	0	0	2	73	361	641	2783

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