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Period of Record General Climate Summary - Heating Degree Days

Station:(323621) GRAND FORKS UNIV
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	1863	1553	1274	688	333	96	26	52	262	626	1145	1649	9567
60	1708	1412	1119	542	214	37	5	15	154	476	995	1494	8170
57	1615	1327	1026	457	155	18	1	5	104	390	905	1401	7405
55	1553	1271	964	403	121	11	0	2	77	335	845	1339	6922
50	1398	1130	810	276	57	2	0	0	32	215	696	1184	5800

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