Average weather for Wisconsin in May

It's pleasantly warm in May in Wisconsin with an average temperature of 21°C. Temperatures this month range from a low of 16°C to a high of 28°C. At night, you can expect temperatures between 7°C and 16°C.

Start of May

The month of May starts in Wisconsin with mild temps, averaging around 19°C during the day and nights around 9°C. There are plenty of days with a good chance of precipitation.

Mid May

By mid-May, daytime temps rise to around 20°C, with nights around 10°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of May

By the end of May, the average daytime temperature in Wisconsin is around 26°C, while nighttime temps are about 14°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

Because temperatures drop in the evening, wearing layers is recommended.

In May, there is an average of 219 mm of precipitation, spread over 10 days. Of the total precipitation, about 0,1 cm falls as snow in May. The wind speed is around 4 Bft, mostly coming from the South.

Wisconsin in May		New York
Average temperature	21°C	22°C
Max. temperature	28°C	28°C
Min. temperature	16°C	-5°C
Total precipitation	219 mm	105 mm
Rainy days	10 days	14 days
Total snowfall	0,1 cm	0 cm
Snowy days	1 day	0 days

April

June

UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Is May a good time to visit Wisconsin?

Looking for sun? May isn’t a good month to be in Wisconsin. The temperature is nice, but there’s too much chance of rain.

Temperature records

With 34°C in 2018, Wisconsin reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 5°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of -2°C to a highest value of 22°C.

Check out the climate of Wisconsin for all months and discover the best travel time

The climate in Wisconsin is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Wisconsin to get the full picture of the climate.

April

June

Daily Temperature in May in Wisconsin

This chart shows the average daily high and low temperatures in May for Wisconsin, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Precipitation in May in Wisconsin

The chart below shows the average daily precipitation in May for Wisconsin, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 10 days of precipitation in Wisconsin.

Daily Snowfall in May in Wisconsin

This chart shows the average daily snowfall in May in Wisconsin, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in May.

Daily UV index in May in Wisconsin

This chart shows the average daily UV index in May in Wisconsin, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Temperature in May in Wisconsin over the years

This chart shows the average temperature in May in Wisconsin, measured in degrees Celsius, over the past few years.

Total precipitation in May in Wisconsin over the years

This chart shows the average precipitation in May in Wisconsin, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Snowfall in May in Wisconsin per year

This chart shows the average snowfall in May in Wisconsin, measured in centimeters, over the past few years.

Snowfall in May in Wisconsin over the past years

April

June

Daily weather in May for Wisconsin

Click on any day in May to get detailed info about the usual weather on that day in Wisconsin. Check out the historical temperatures and precipitation over the past 10 years on this day.

Average weather in Wisconsin by month

Click on a month below to see detailed weather info for Wisconsin. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.