MAHNOMEN 1 W, MINNESOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(215012) MAHNOMEN 1 W
From Year=1927 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	1865	1508	1224	691	320	102	31	57	273	619	1143	1640	9473
60	1710	1367	1070	545	202	38	6	17	163	471	993	1485	8067
57	1617	1282	977	459	145	18	2	6	110	386	904	1392	7299
55	1555	1225	915	405	114	10	1	3	81	333	844	1330	6815
50	1400	1084	762	276	54	2	0	0	32	214	695	1175	5693

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