WHITE LAKE, SOUTH DAKOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(399232) WHITE LAKE
From Year=1909 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	1470	1195	971	524	227	44	5	11	133	446	922	1337	7286
60	1315	1053	817	386	128	14	1	2	65	311	772	1182	6047
57	1222	968	726	310	84	6	0	1	39	240	683	1089	5368
55	1160	912	666	263	61	3	0	0	27	198	623	1027	4941
50	1005	771	520	161	24	0	0	0	9	113	479	873	3957

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