POWDERHORN, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(056651) POWDERHORN
From Year=1964 To Year=1971
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1628	1421	1289	917	640	425	197	236	471	793	1100	1553	10669
60	1473	1280	1134	767	485	276	67	107	322	638	950	1398	8895
57	1380	1196	1041	677	393	195	27	58	234	545	860	1305	7910
55	1318	1139	979	617	332	144	14	37	179	484	800	1243	7286
50	1163	998	824	467	191	51	1	8	70	332	650	1088	5842

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