SAFFORD AGRICULTRL CTR, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(027390) SAFFORD AGRICULTRL CTR
From Year=1948 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	639	469	342	141	28	0	0	0	2	83	376	635	2715
60	484	329	205	63	9	0	0	0	0	32	237	480	1839
57	391	249	138	36	4	0	0	0	0	17	164	387	1387
55	330	199	102	24	2	0	0	0	0	11	122	326	1116
50	187	98	40	6	1	0	0	0	0	3	51	185	571

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