REDFIELD, SOUTH DAKOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(397052) REDFIELD 2 NE
From Year=1949 To Year=2011
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1684	1342	1102	598	269	62	12	24	196	540	1021	1470	8320
60	1529	1201	947	456	158	21	2	6	108	396	871	1315	7010
57	1436	1116	854	375	107	10	0	2	69	317	782	1222	6290
55	1374	1060	793	324	81	5	0	1	49	268	722	1160	5836
50	1219	919	641	210	35	1	0	0	18	161	574	1005	4784

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