PRESCOTT, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(026796) PRESCOTT
From Year=1898 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	899	732	660	437	231	46	2	4	62	325	633	873	4905
60	744	591	505	292	117	13	0	0	18	189	483	718	3671
57	651	507	413	214	71	5	0	0	7	124	394	625	3009
55	589	450	353	167	48	2	0	0	4	89	335	563	2601
50	435	311	215	78	16	0	0	0	0	34	200	408	1697

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 Jul 28, 2006
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