SANTA RITA EXP RANGE, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(027593) SANTA RITA EXP RANGE
From Year=1950 To Year=2010
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	495	392	311	140	30	1	0	0	1	59	279	486	2193
60	343	258	185	65	8	0	0	0	0	23	162	334	1377
57	258	187	126	38	3	0	0	0	0	12	108	250	982
55	206	146	94	25	1	0	0	0	0	8	81	199	761
50	104	69	38	7	0	0	0	0	0	2	34	99	353

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