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Period of Record General Climate Summary - Heating Degree Days

Station:(478672) TWO RIVERS
From Year=1950 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	1415	1198	1042	683	425	155	35	31	183	508	850	1249	7773
60	1260	1056	887	534	278	63	4	4	84	356	700	1094	6320
57	1167	972	794	446	198	29	1	1	46	270	610	1001	5534
55	1105	915	732	388	150	15	0	0	29	217	551	939	5041
50	950	774	578	249	58	1	0	0	7	109	404	784	3914

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