Average December Temperatures for Wisconsin - Current Results Menu Current Results weather and science facts Home | Weather Extremes | Weather Averages | USA | Canada | Europe | Average Temperatures for Wisconsin in December Average temperatures for December at cities, communities and lakes throughout Wisconsin are listed below in degrees Fahrenheit and Celsius. You can jump to a separate table for each region of the state: Eastern Wisconsin, Southwest Wisconsin, Northern Wisconsin and the Lake Superior Shore. The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information. Eastern Wisconsin Average December temperatures High °F Low °F Place High °C Low °C 31 17 Appleton -1 -8 28 11 Crivitz, High Falls Flowage -2 -12 31 16 Fond du Lac -1 -9 31 18 Green Bay 0 -8 36 23 Kenosha 2 -5 35 21 Lake Geneva 2 -6 32 20 Manitowoc 0 -7 32 17 Marinette 0 -8 36 23 Milwaukee 2 -5 32 18 Oshkosh 0 -8 35 21 Racine 2 -6 36 22 Sheboygan 2 -6 31 19 Sturgeon Bay 0 -8 32 19 Washington Island 0 -7 32 17 Watertown 0 -8 33 18 Whitewater 1 -8 Southwest Wisconsin Average daily temperatures in December High °F Low °F Place High °C Low °C 33 17 Baraboo 1 -9 30 15 Beaver Dam -1 -9 31 17 Beloit -1 -8 33 18 La Crosse 0 -8 32 18 Madison 0 -8 32 17 Platteville 0 -9 33 17 Prairie du Chien 0 -8 28 13 Viroqua -2 -11 32 15 Wisconsin Dells 0 -9 30 12 Wisconsin Rapids -1 -11 Northern Wisconsin December temperatures: daily averages High °F Low °F Place High °C Low °C 24 11 Drummond -5 -12 29 13 Eau Claire -2 -11 25 10 Park Falls -4 -12 25 9 Rest Lake, Manitowish Waters -4 -13 26 9 Rhinelander -3 -13 27 10 Rice Lake -3 -12 27 12 River Falls -3 -11 28 11 St Croix Falls -2 -11 29 14 Stevens Point -2 -10 28 14 Wausau -2 -10 25 10 Willow Reservoir -4 -12 Lake Superior Shore Average December temperatures High °F Low °F Place High °C Low °C 28 13 Ashland -2 -11 28 15 Bayfield -2 -10 26 11 Hurley -4 -12 28 16 Madeline Island -2 -9 27 13 Superior -3 -11 Reference NOAA National Centers for Environmental Information (NCEI). Climate Normals. Share More Wisconsin Weather Information Average Wisconsin Sunshine in December Precipitation Averages for Wisconsin in December Average December Snowfall in Wisconsin Weather Averages USA > Wisconsin > Wisconsin Temperatures January February March April May June July August September October November December Annual Major USA Cities Temperature Precipitation Snow Sun Humidity Wind Recent States Temperature Precipitation Snow Sun Humidity Extreme USA Weather Best Coldest Hottest Snowiest Stormiest Driest Wettest Cloudiest Windiest Calmest Sunniest World Weather Extremes World Weather Averages USA Canada Europe ↑ Back to Top American Weather Major USA Cities Temperature Precipitation Snow Sun Cloud Humidity Wind Recent States Temperature Precipitation Snow Sun Humidity Extreme USA Weather Best Coldest Hottest Wettest Snowiest Stormiest Sunniest Home | Privacy & Cookies | Contact | About Copyright © 2022 Current Results Publishing Ltd.