ARCHER, WYOMING

Period of Record General Climate Summary - Heating Degree Days

Station:(480270) ARCHER
From Year=1911 To Year=2005
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1193	1015	964	689	413	148	28	39	220	548	913	1147	7316
60	1038	873	809	540	272	70	7	11	125	398	763	992	5898
57	945	788	717	452	200	40	3	5	85	315	673	899	5123
55	883	732	656	396	158	27	2	2	65	265	613	837	4635
50	728	591	505	267	79	9	0	0	30	160	468	682	3520

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