MC NARY, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(025412) MC NARY 2 N
From Year=1920 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	1054	905	858	616	392	142	39	70	195	481	776	1008	6537
60	899	764	703	467	245	53	3	8	78	327	626	853	5026
57	806	679	610	377	167	24	0	2	37	240	536	760	4238
55	744	623	548	319	124	13	0	0	21	187	476	698	3754
50	589	482	394	188	49	3	0	0	4	87	329	543	2667

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