Wisconsin is one of several regions in the United States of America, with temperatures that range from -2°C (28°F) in January to 28°C (82°F) during the peak of July. We've based our full climate overview on data from Lake Geneva, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
The weather in Wisconsin during May, June, August and September is comfortably warm, with average temperatures ranging from 21°C (70°F) to 27°C (81°F).
The cooler season is during the months of January, February, March, November and December.
Precipitation in Wisconsin varies considerably throughout the year. The wettest conditions occur in June with 133 mm (5.2 in) of rain, while January stays relatively dry with 43 mm (1.7 in).
For those seeking sunshine, July usually has the brightest skies, making it an excellent time for exploring the region.
