SISSETON, SOUTH DAKOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(397742) SISSETON 1 E
From Year=1900 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	1643	1363	1092	605	264	66	11	26	192	507	999	1452	8220
60	1488	1222	938	462	154	23	1	6	102	366	849	1297	6908
57	1395	1137	845	381	103	11	0	2	64	287	760	1204	6190
55	1333	1080	784	330	77	6	0	0	44	239	700	1142	5738
50	1178	939	633	215	32	1	0	0	15	140	555	987	4696

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