Average Temperatures for Wisconsin in January
Average temperatures for January 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
| High °F | Low °F | Place | High °C | Low °C |
|---|---|---|---|---|
| 25 | 10 | Appleton | -4 | -12 |
| 23 | 4 | Crivitz, High Falls Flowage | -5 | -16 |
| 25 | 9 | Fond du Lac | -4 | -13 |
| 26 | 11 | Green Bay | -4 | -12 |
| 31 | 17 | Kenosha | -1 | -8 |
| 30 | 15 | Lake Geneva | -1 | -9 |
| 27 | 13 | Manitowoc | -3 | -10 |
| 26 | 10 | Marinette | -3 | -13 |
| 31 | 17 | Milwaukee | -1 | -8 |
| 26 | 10 | Oshkosh | -3 | -12 |
| 30 | 15 | Racine | -1 | -10 |
| 30 | 15 | Sheboygan | -1 | -10 |
| 25 | 10 | Sturgeon Bay | -4 | -12 |
| 26 | 11 | Washington Island | -4 | -12 |
| 26 | 11 | Watertown | -3 | -12 |
| 27 | 12 | Whitewater | -3 | -11 |
Southwest Wisconsin
| High °F | Low °F | Place | High °C | Low °C |
|---|---|---|---|---|
| 28 | 10 | Baraboo | -3 | -12 |
| 25 | 9 | Beaver Dam | -4 | -13 |
| 25 | 11 | Beloit | -4 | -12 |
| 27 | 11 | La Crosse | -3 | -12 |
| 27 | 12 | Madison | -3 | -11 |
| 26 | 10 | Platteville | -4 | -12 |
| 27 | 10 | Prairie du Chien | -3 | -12 |
| 23 | 6 | Viroqua | -5 | -14 |
| 26 | 8 | Wisconsin Dells | -3 | -13 |
| 24 | 5 | Wisconsin Rapids | -4 | -15 |
Northern Wisconsin
| High °F | Low °F | Place | High °C | Low °C |
|---|---|---|---|---|
| 19 | 3 | Drummond | -7 | -16 |
| 23 | 6 | Eau Claire | -5 | -15 |
| 20 | 2 | Park Falls | -7 | -17 |
| 20 | 0 | Rest Lake, Manitowish Waters | -7 | -18 |
| 21 | 0 | Rhinelander | -6 | -18 |
| 22 | 2 | Rice Lake | -6 | -17 |
| 22 | 4 | River Falls | -6 | -15 |
| 23 | 3 | St Croix Falls | -5 | -16 |
| 24 | 7 | Stevens Point | -5 | -14 |
| 23 | 7 | Wausau | -5 | -14 |
| 20 | 2 | Willow Reservoir | -7 | -17 |
Lake Superior Shore
| High °F | Low °F | Place | High °C | Low °C |
|---|---|---|---|---|
| 22 | 6 | Ashland | -5 | -15 |
| 22 | 7 | Bayfield | -6 | -14 |
| 20 | 3 | Hurley | -7 | -16 |
| 22 | 7 | Madeline Island | -6 | -14 |
| 23 | 6 | Superior | -5 | -15 |
Reference
NOAA National Centers for Environmental Information (NCEI). Climate Normals.