Wisconsin December Weather

Wisconsin weather averages and all-time records in the month of December from 1991–2020 based on data made available by the NOAA.

State:

Month:

Statewide December Averages
High temperature	29.0 °F
Low temperature	13.8 °F
Precipitation	1.5 inches

Wisconsin Cities

December weather averages for various places in Wisconsin, from 1991–2020.

City	Average (°F)		Record (°F)		Monthly (inches)
City	High	Low	High	Low	Precipitation	Snow
Appleton	30.8	17.0	64	-23	1.8	11.6
Baraboo	33.1	15.1	68	-35	1.6	10.3
Beloit	33.6	19.3	67	-25	1.9	10.1
Dodgeville	31.1	15.5	67	-22	1.8	10.3
Eau Claire	28.5	12.9	64	-32	1.4	11.0
Fond Du Lac	31.1	17.5	65	-28	1.4	8.5
Fort Atkinson	33.2	17.9	67	-29	1.7	9.4
Green Bay	31.2	17.3	65	-27	1.8	13.1
Hartford	31.7	16.1	65	-29	1.7	9.3
Janesville	33.5	18.1	67	-25	1.9	9.9
Kenosha	35.9	22.6	70	-29	2.1	7.2
La Crosse	31.5	17.0	69	-37	1.5	10.7
Lake Mills	32.6	18.7	66	-24	1.9	9.9
Madison	32.6	18.1	68	-28	1.6	12.0
Manitowoc	32.5	20.9	64	-21	1.6	7.6
Marinette	31.3	17.4	62	-23	2.0	9.1
Marshfield	28.5	13.2	63	-29	1.4	13.5
Menomonie	29.9	13.8	64	-36	1.4	9.9
Merrill	27.4	11.3	62	-31	1.5	11.8
Milwaukee	35.1	22.5	68	-22	1.9	10.2
Minocqua	25.5	8.4	57	-36	1.7	19.5
New London	30.3	15.1	63	-27	1.8	10.8
Oconomowoc	33.3	18.1	67	-25	1.9	9.8
Oshkosh	31.7	17.7	65	-27	1.6	8.9
Plymouth	32.3	18.4	67	-20	1.8	10.5
Portage	32.1	17.3	67	-24	1.7	9.3
Prairie du Chien	33.2	16.8	70	-26	1.6	9.2
Racine	34.8	22.2	66	-23	2.1	7.9
Reedsburg	32.8	17.3	66	-27	2.2	n/a
Rhinelander	27.1	11.0	62	-34	1.6	13.6
Rice Lake	26.4	10.5	60	-40	1.2	11.9
River Falls	27.7	12.1	66	-36	1.1	10.1
Shawano	29.4	13.8	62	-26	1.6	11.3
Sheboygan	34.4	20.1	65	-21	2.0	8.8
Sparta	30.8	14.0	67	-35	1.4	8.0
St. Croix Falls	29.2	10.7	66	-39	0.9	8.7
Stevens Point	29.1	14.3	62	-32	1.5	11.2
Sturgeon Bay	31.6	19.2	60	-22	2.0	13.7
Superior	27.3	13.2	60	-32	1.3	11.0
Watertown	32.2	17.6	66	-27	1.7	9.3
Waupaca	30.3	15.0	64	-28	1.7	11.6
Wausau	28.1	14.1	61	-26	1.5	14.6
Whitewater	33.1	17.9	66	-25	1.8	8.9
Wisconsin Dells	31.7	14.3	67	-27	1.7	10.4