SPOONER EXP FARM, WISCONSIN

Period of Record General Climate Summary - Heating Degree Days

Station:(478027) SPOONER EXPERMNT FARM
From Year=1894 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	1674	1410	1158	652	315	97	26	56	236	562	1015	1493	8695
60	1519	1269	1004	508	198	39	5	16	134	417	865	1338	7311
57	1426	1184	911	425	140	19	1	6	88	335	775	1245	6556
55	1364	1127	850	372	108	11	0	3	64	284	716	1183	6082
50	1209	986	697	250	48	2	0	0	24	175	569	1028	4988

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