BLUE RIDGE RS, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(020871) BLUE RIDGE RANGER STN
From Year=1967 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	1109	908	856	630	388	131	18	43	192	533	799	1079	6686
60	954	767	701	480	245	52	1	6	83	379	649	924	5242
57	861	682	608	391	171	25	0	1	43	291	560	831	4464
55	799	626	546	334	129	14	0	1	26	236	500	769	3979
50	644	485	393	203	56	2	0	0	5	122	353	614	2877

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