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Period of Record General Climate Summary - Heating Degree Days

Station:(321408) CASSELTON AGRONOMY FRM
From Year=1984 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	1749	1465	1186	648	288	71	20	39	223	615	1099	1546	8948
60	1594	1324	1031	503	175	24	4	9	126	468	949	1391	7599
57	1501	1239	938	420	122	11	1	3	83	384	859	1298	6859
55	1439	1183	876	367	93	6	1	1	60	330	800	1236	6390
50	1284	1041	722	244	43	1	0	0	23	210	651	1081	5299

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