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
Wilsonville sees a rise in temperature during May, with average high-temperatures transitioning from a refreshing 63.9°F (17.7°C) in April to a warm 73.9°F (23.3°C). During the month of May, the temperature in Wilsonville falls to an average of 56.7°F (13.7°C).Humidity
In Wilsonville, Illinois, the average relative humidity in May is 79%.Rainfall
In Wilsonville, Illinois, during May, the rain falls for 13.9 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Wilsonville, during the entire year, the rain falls for 121.4 days and collects up to 14.72" (374mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Wilsonville, the average length of the day in May is 14h and 20min.On the first day of the month, sunrise is at 6:00 am and sunset at 7:52 pm. On the last day of May, in Wilsonville, Illinois, sunrise is at 5:35 am and sunset at 8:19 pm CDT.
Sunshine
In May, the average sunshine is 9.3h.UV index
In May, the average daily maximum UV index in Wilsonville, Illinois, is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Wilsonville in May?
What is the average humidity in May in Wilsonville?
How many days does it rain in May in Wilsonville?
When it does not snow in Wilsonville?
What is the average length of the day in May in Wilsonville?
What time are sunrise and sunset in May in Wilsonville?
How many hours of sunshine does Wilsonville have in May?
What is the UV index intensity in May in Wilsonville?
Average temperature in May
Wilsonville, IL
- Average high temperature in May: 73.9°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in May: 56.7°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in May
Wilsonville, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Wilsonville, IL
- Average wind speed in May: 7.8mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in May
Wilsonville, IL
- Average humidity in May: 79%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Wilsonville, IL
- Average rainfall in May: 1.81"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in May
Wilsonville, IL
- Average rainfall days in May: 13.9 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in May
Wilsonville, IL
- Average snowfall in May: 0"
The month with the highest snowfall is December (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Wilsonville, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Wilsonville, IL
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 9h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in May
Wilsonville, IL
- Average sunshine days in May: 13.6 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in May
Wilsonville, IL
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Wilsonville, IL
- Average cloud cover in May: 38
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in May
Wilsonville, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Wilsonville, Illinois, USA
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