EAGLE CO AP, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(052454) EAGLE FAA AIRPORT
From Year=1904 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	1423	1136	967	687	433	182	37	70	279	627	1009	1387	8238
60	1268	995	812	537	281	76	4	12	145	472	859	1232	6694
57	1175	910	719	447	197	39	1	3	84	380	769	1139	5863
55	1113	854	657	388	149	23	0	1	55	319	709	1077	5344
50	958	713	502	246	62	5	0	0	16	182	559	922	4163

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