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Weather in May in Wisconsin

Planning a getaway to Wisconsin this May and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What is the weather like in Wisconsin in May?

Wisconsin is a region in the United States of America. May in Wisconsin generally has temperatures that range from moderate to pleasant, with precipitation levels ranging from moderate to high.

Temperatures

During the day temperatures vary from moderate in Superior at 14°C to pleasant in Lodi at 22°C. At night it cools down to 8°C in Lodi and 4°C in Superior.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Egg Harbor with an average of 73 mm to high rainfall in Onalaska with 118 mm.

Average sunshine

The days are mostly sunny, with an average total of around 276 hours of sunshine in Lake Geneva. The sunlight during this month doesn't just make the days brighter, it also seems to make everyone a bit more cheerful.

For specific regional insights in Wisconsin for May, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Wisconsin climate page.

Where to go in Wisconsin in May

Find more information for the most popular destinations in the Wisconsin on the map below. Click on a destination dot for more detailes.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in May for the 5 most popular destinations in Wisconsin?

Lake Geneva

In May Lake Geneva generally has pleasant temperatures with maximum daytime temperatures around 21°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Lake Geneva
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
14°C 
2°C 
215 hours 
107 mm 
13 days 
21°C 
9°C 
276 hours 
90 mm 
13 days 
June   >> June
>>  
26°C 
14°C 
305 hours 
133 mm 
13 days 
Climate in Lake Geneva

Brookfield

In May Brookfield generally has pleasant temperatures with maximum daytime temperatures around 20°C, minimum nighttime temperatures around 8°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Brookfield
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
13°C 
2°C 
215 hours 
117 mm 
13 days 
poor 
20°C 
8°C 
276 hours 
90 mm 
13 days 
June   >> June
>>  
25°C 
14°C 
305 hours 
143 mm 
12 days 
Climate in Brookfield

Janesville

In May Janesville generally has pleasant temperatures with maximum daytime temperatures around 21°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Janesville
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
14°C 
3°C 
211 hours 
107 mm 
13 days 
21°C 
9°C 
266 hours 
93 mm 
13 days 
June   >> June
>>  
26°C 
14°C 
297 hours 
139 mm 
13 days 
Climate in Janesville

Oak Creek

In May Oak Creek generally has pleasant temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Oak Creek
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
12°C 
3°C 
215 hours 
115 mm 
13 days 
poor 
18°C 
9°C 
276 hours 
83 mm 
12 days 
June   >> June
>>  
24°C 
14°C 
305 hours 
117 mm 
12 days 
Climate in Oak Creek

Pleasant Prairie

In May Pleasant Prairie generally has pleasant temperatures with maximum daytime temperatures around 20°C, minimum nighttime temperatures around 8°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Pleasant Prairie
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
13°C 
2°C 
215 hours 
102 mm 
12 days 
poor 
20°C 
8°C 
276 hours 
85 mm 
13 days 
June   >> June
>>  
25°C 
14°C 
305 hours 
105 mm 
13 days 
Climate in Pleasant Prairie

Is your destination not in the list? Have a look at other destinations in Wisconsin, in the United States of America.

Is May the best time to visit Wisconsin?

We consider May to be one of the best times to travel to Wisconsin. Typically, the climate in Lake Geneva is perfect. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in May, July and September offering mostly perfect weather in Lake Geneva. On the other hand, the months of January, February, March, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Wisconsin. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.