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Period of Record General Climate Summary - Heating Degree Days

Station:(478827) VIROQUA 2 NW
From Year=1893 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	1547	1303	1050	587	275	69	15	34	189	500	928	1385	7881
60	1392	1162	896	446	164	24	2	7	100	358	779	1230	6560
57	1299	1077	804	366	111	11	0	2	62	281	689	1137	5840
55	1237	1021	743	315	82	6	0	1	43	235	630	1075	5388
50	1082	880	594	201	33	1	0	0	14	138	487	920	4350

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