PLYMOUTH, WISCONSIN

Period of Record General Climate Summary - Heating Degree Days

Station:(476678) PLYMOUTH
From Year=1910 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	1441	1231	1035	623	321	92	18	31	170	475	865	1278	7581
60	1286	1090	880	479	200	36	3	6	84	333	716	1123	6236
57	1193	1005	788	396	140	18	0	1	49	256	626	1030	5503
55	1131	949	728	343	106	10	0	0	32	209	567	968	5043
50	976	808	578	221	44	2	0	0	9	114	424	813	3988

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