Wisconsin Weather by Month — Temperature & Rainfall Guide

Wisconsin is a region in the United States of America. Many people wonder what the weather conditions are in Wisconsin over the year. What is the best time to visit Wisconsin?

This page shows the average weather conditions by month in Wisconsin over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

In January the weather in Wisconsin is generally poor. January is a winter month. The average maximum daytime temperatures are very low and range from -6°C (21°F) in Minocqua to -1°C (30°F) in Kenosha. On average, this month is one of the coldest months of the year in Wisconsin. So be prepared and make sure to dress up warm.

Find more detailed climate information for Wisconsin in January here.

In February the weather in Wisconsin is generally poor. February is a winter month. The average maximum daytime temperatures are very low and range from -5°C (23°F) in Antigo to -1°C (30°F) in Milwaukee. It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Wisconsin in February here.

In March the weather in Wisconsin is generally poor. The average maximum daytime temperatures are low and range from 3°C (37°F) in Superior to 7°C (45°F) in Prairie du Chien.

Find more detailed climate information for Wisconsin in March here.

In April the weather in Wisconsin ranges from poor in Brookfield to tolerable in Hudson. The temperatures range from low in Superior with 8°C (46°F) to moderate in Prairie du Chien with 15°C (59°F).

Find more detailed climate information for Wisconsin in April here.

In May the weather in Wisconsin ranges from tolerable in Racine to perfect in Brookfield. The temperatures range from moderate in Superior with 14°C (57°F) to pleasant in Lodi with 22°C (72°F).

Find more detailed climate information for Wisconsin in May here.

In June the weather in Wisconsin ranges from pleasant in Brookfield to perfect in Ashland. June is a summer month. The temperatures range from pleasant in Superior with 20°C (68°F) to high in Onalaska with 26°C (79°F).

Find more detailed climate information for Wisconsin in June here.

In July the weather in Wisconsin ranges from pleasant in Hudson to perfect in Brookfield. July is a summer month. The average maximum daytime temperatures are high and range from 25°C (77°F) in Two Rivers to 29°C (84°F) in Onalaska. On average, this month is one of the warmest months of the year in Wisconsin. So be prepared and make sure to dress lightly.

Find more detailed climate information for Wisconsin in July here.

In August the weather in Wisconsin ranges from pleasant in Lake Geneva to perfect in Brookfield. August is a summer month. The average maximum daytime temperatures are high and range from 24°C (75°F) in Minocqua to 28°C (82°F) in Onalaska.

Find more detailed climate information for Wisconsin in August here.

In September the weather in Wisconsin ranges from pleasant in Chippewa Falls to perfect in Brookfield. The temperatures range from pleasant in Minocqua with 20°C (68°F) to high in Prairie du Chien with 24°C (75°F).

Find more detailed climate information for Wisconsin in September here.

In October the weather in Wisconsin ranges from unpleasant in Ashland to tolerable in Brookfield. The temperatures range from low in Eagle River with 12°C (54°F) to moderate in Prairie du Chien with 16°C (61°F).

Find more detailed climate information for Wisconsin in October here.

In November the weather in Wisconsin is generally poor. The average maximum daytime temperatures are low and range from 4°C (39°F) in Minocqua to 9°C (48°F) in Kenosha.

Find more detailed climate information for Wisconsin in November here.

In December the weather in Wisconsin is generally poor. December is a winter month. The temperatures range from very low in Minocqua with -4°C (25°F) to low in Kenosha with 2°C (36°F). It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Wisconsin in December here.