June weather forecastWilsonville, IL
June
Weather in June
June, the first month of the summer in Wilsonville, is also a moderately hot month, with an average temperature varying between 65.5°F (18.6°C) and 82.2°F (27.9°C).Temperature
A slight uplift of average high-temperatures is noted in June, with temperatures adjusting from a moderately hot 73.9°F (23.3°C) in May to a still warm 82.2°F (27.9°C). Wilsonville, during June nights, observes an average temperature of 65.5°F (18.6°C).Heat index
The heat index in June is calculated to be a hot 89.6°F (32°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
In Wilsonville, the average relative humidity in June is 79%.Rainfall
June is the month with the most rainfall in Wilsonville. Rain falls for 13.4 days and accumulates 1.89" (48mm) of precipitation.Snowfall
In Wilsonville, snow does not fall in April through October.Daylight
June has the longest days of the year, with an average of 14h and 54min of daylight.On the first day of the month, sunrise is at 5:35 am and sunset at 8:19 pm. On the last day of June, in Wilsonville, Illinois, sunrise is at 5:37 am and sunset at 8:29 pm CDT.
Sunshine
The months with the most sunshine in Wilsonville are June and July, with an average of 10.3h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 6 in June leads to these guidelines:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Wilsonville, IL
- Average high temperature in June: 82.2°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 June: 65.5°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 June
Wilsonville, IL
- Average pressure in June: 29.92"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 June
Wilsonville, IL
- Average wind speed in June: 6.8mph
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 June
Wilsonville, IL
- Average humidity in June: 79%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Wilsonville, IL
- Average rainfall in June: 1.89"
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 June
Wilsonville, IL
- Average rainfall days in June: 13.4 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 June
Wilsonville, IL
- Average snowfall in June: 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 June
Wilsonville, IL
- Average snowfall days in June: 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 June /
Average sunshine in June
Wilsonville, IL
- Average daylight in June: 14h and 54min
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 June: 10h and 18min
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 June
Wilsonville, IL
- Average sunshine days in June: 12.8 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 June
Wilsonville, IL
- Average UV index in June: 6
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 June
Wilsonville, IL
- Average cloud cover in June: 29
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 June
Wilsonville, IL
- Average visibility in June: 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).





