ELK RIVER, MINNESOTA

Period of Record General Climate Summary - Cooling Degree Days

Station:(212500) ELK RIVER
From Year=1940 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	0	0	10	20	168	402	597	483	219	49	2	0	1949
57	0	0	7	12	129	343	535	421	175	37	1	0	1659
60	0	0	3	5	82	260	442	330	119	23	0	0	1264
65	0	0	1	0	36	136	291	184	52	9	0	0	709
70	0	0	0	0	12	55	153	77	15	2	0	0	314

Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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