AVON, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(050405) AVON
From Year=1981 To Year=1989
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1447	1170	1038	828	525	313	117	107	347	758	1036	1349	9034
60	1292	1029	883	678	371	180	31	21	204	603	886	1194	7370
57	1199	944	790	588	285	112	12	5	134	510	796	1101	6475
55	1137	888	728	529	233	75	7	1	99	448	736	1039	5919
50	982	747	573	385	128	23	0	0	42	299	586	884	4649

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