Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
With the onset of May, Wilton's weather sees a temperature rise, transitioning from a cool 52.3°F (11.3°C) in April to a comfortable 65.7°F (18.7°C). An average low-temperature of 47.5°F (8.6°C) is expected during May.Humidity
In Wilton, the average relative humidity in May is 79%.Rainfall
In May, in Wilton, the rain falls for 15 days. Throughout May, 2.24" (57mm) of precipitation is accumulated. In Wilton, during the entire year, the rain falls for 112.6 days and collects up to 18.11" (460mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Wilton aggregates 0.12" (3mm) of snow. Throughout the year, there are 58.3 snowfall days, and 16.02" (407mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 45min.On the first day of May, sunrise is at 5:52 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:22 am and sunset at 8:36 pm CDT.
Sunshine
In Wilton, the average sunshine in May is 8.2h.UV index
In Wilton, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Wilton?
What is the average humidity in May?
How many days does it rain in May in Wilton?
What is the last month it snows?
What is the average length of the day in May?
When are sunrise and sunset in May?
How many hours of sunshine does Wilton have in May?
What is the UV index reading in May?
Average temperature in May
Wilton, WI
- Average high temperature in May: 65.7°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (21.4°F).
- Average low temperature in May: 47.5°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).
Average pressure in May
Wilton, WI
- Average pressure in May: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Wilton, WI
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in May
Wilton, WI
- Average humidity in May: 79%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (77%).
Average rainfall in May
Wilton, WI
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.67").
Average rainfall days in May
Wilton, WI
- Average rainfall days in May: 15 days
The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in May
Wilton, WI
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Wilton, WI
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Wilton, WI
- Average daylight in May: 14h and 5min
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 1min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in May
Wilton, WI
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in May
Wilton, WI
- Average UV index in May: 4
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
Wilton, WI
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Wilton, WI
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
Wilton, Wisconsin, USA
Weather forecast for your location
2. Allow the app to use your location