ROTHSAY, MINNESOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(217149) ROTHSAY
From Year=1959 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	1791	1448	1185	639	283	66	16	33	221	573	1077	1578	8911
60	1636	1307	1030	494	171	21	3	8	123	426	927	1423	7569
57	1543	1222	937	411	118	10	1	2	80	344	837	1330	6835
55	1481	1165	875	359	90	5	0	1	57	293	777	1268	6372
50	1326	1024	722	238	40	1	0	0	21	180	629	1113	5296

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