Temperatures 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.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Wisconsin in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in Wisconsin with mild temperatures, averaging around 19°C during the day and nights close to 9°C. Plenty of days with a chance of precipitation.
Mid-May
By mid-May, the average daytime temperature rises to around 20°C, with nights close to 10°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of May
By the end of May, the average daytime temperature in Wisconsin will be around 26°C, with nights close to 14°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
As it gets cooler in the evening, it’s best to wear layers.
Discover cheap holidays to Wisconsin 
Precipitation in May
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.
The average precipitation chance is 33% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for Wisconsin. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Wisconsin in May |
UK | ||
|---|---|---|---|
 Average Temperature |
21°C | 18°C | |
 High Temp |
28°C | 21°C | |
| Low Temp |
16°C | 15°C | |
 Total Precipitation |
219 mm | 46 mm | |
| Rainy Days |
10 days | 8 days | |
 Total Snowfall |
0,1 cm | 0 cm | |
| Snowy Days |
1 day | 0 days | |
April
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?
After some sun? Then May isn’t the best time to be in Wisconsin. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Wisconsin in May
With 34°C, Wisconsin hit the highest temperature in the last 10 years in May 2018. The lowest daytime temperature in this month was 5°C in 2018. The extreme night temperatures ranged from a low of -2°C to a high of 22°C.
Check out the climate of Wisconsin for all months and discover the best travel time
The climate of Wisconsin is based on weather data from . Other spots, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Wisconsin for a full picture of the climate.
Plan your next holiday
Don’t miss the best holiday deals for Wisconsin and see what our partners have for you.
Daily Temperature in May in Wisconsin
This chart shows the average daily temperatures, both day and night, for each day in May in Wisconsin, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in May in Wisconsin
The chart below shows the average daily precipitation in May for Wisconsin, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 10 days of rain in Wisconsin.
Daily Snowfall in May in Wisconsin
This chart shows the average daily snowfall in May in Wisconsin, measured in centimetres. 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 years.
Total Precipitation in May in Wisconsin Over the Years
This chart shows the average precipitation in May in Wisconsin, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Snowfall in May in Wisconsin per year
This chart shows the average snowfall in May in Wisconsin, measured in centimetres, over the past years.
Daily climate in May for Wisconsin
Click on a specific day in May for detailed info on the typical weather on that day in Wisconsin. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Wisconsin
Have you been to Wisconsin in May?
Share your weather experience in May in Wisconsin.
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.
Or check out the climate of Wisconsin for all months at once
