May weather forecastWisconsin Dells, WI
May
Weather in May
By the time May rolls around, the weather is outright spring-like in Wisconsin Dells. May is decidedly warmer, with average high temperatures hovering around a comfortable 65.8°F (18.8°C). The rainfall is more frequent, promising green verdant landscapes and blooming flowers galore. Daytime expands with longer periods of sunshine, thus drying out the frequent showers. The city is bathed in a warm glow, paving the way for the approaching summer festivities.Temperature
May's onset in Wisconsin Dells, Wisconsin, brings a rise in the average high-temperature, moving from a cool 52.5°F (11.4°C) in April to a comfortable 65.8°F (18.8°C). In Wisconsin Dells, the nighttime temperature averages to a chilly 47.8°F (8.8°C) during May.Humidity
In May, the average relative humidity in Wisconsin Dells is 79%.Rainfall
In Wisconsin Dells, in May, it is raining for 13 days, with typically 0.98" (25mm) of accumulated precipitation. In Wisconsin Dells, Wisconsin, during the entire year, the rain falls for 94.1 days and collects up to 8.46" (215mm) of precipitation.Snowfall
In Wisconsin Dells, snow does not fall in May through September.Daylight
The average length of the day in May is 14h and 44min.On the first day of the month, sunrise is at 5:50 am and sunset at 8:01 pm. On the last day of May, in Wisconsin Dells, sunrise is at 5:20 am and sunset at 8:33 pm CDT.
Sunshine
The average sunshine in May is 8.5h.UV index
In Wisconsin Dells, Wisconsin, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Wisconsin Dells, WI
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in May: 47.8°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (10°F).
Average pressure in May
Wisconsin Dells, WI
- Average pressure in May: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Wisconsin Dells, WI
- Average wind speed in May: 8.5mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
Wisconsin Dells, WI
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Wisconsin Dells, WI
- Average rainfall in May: 0.98"
The wettest month (with the highest rainfall) is June (1.18").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in May
Wisconsin Dells, WI
- Average rainfall days in May: 13 days
The month with the highest number of rainy days is June (13.3 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in May
Wisconsin Dells, WI
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Wisconsin Dells, WI
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Wisconsin Dells, WI
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in May
Wisconsin Dells, WI
- Average sunshine days in May: 14.2 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is June (14.1 days).
Average UV index in May
Wisconsin Dells, WI
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Wisconsin Dells, WI
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Wisconsin Dells, WI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
