June weather forecastIllinois City, IL
June
Weather in June
June, the first month of the summer in Illinois City, is a moderately hot month, with an average temperature varying between 79°F (26.1°C) and 62.4°F (16.9°C).Temperature
With the onset of June, Illinois City experiences a subtle temperature shift, with the average high-temperature moving from a pleasant 70.3°F (21.3°C) in May to a warm 79°F (26.1°C). During June nights, Illinois City witnesses a consistent average temperature of 62.4°F (16.9°C).Humidity
In June, the average relative humidity is 81%.Rainfall
In Illinois City, in June, it is raining for 17 days, with typically 2.8" (71mm) of accumulated precipitation. Throughout the year, there are 128 rainfall days, and 19.29" (490mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
The month with the longest days is June, with an average of 15h and 6min of daylight.On the first day of June, sunrise is at 5:32 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:41 pm CDT.
Sunshine
In June, the average sunshine is 9.9h.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In June, the maximum UV index of 6 transforms into these recommendations:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Illinois City, IL
- Average high temperature in June: 79°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in June: 62.4°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in June
Illinois City, IL
- Average pressure in June: 29.9"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in June
Illinois City, IL
- Average wind speed in June: 7.8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in June
Illinois City, IL
- Average humidity in June: 81%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Illinois City, IL
- Average rainfall in June: 2.8"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in June
Illinois City, IL
- Average rainfall days in June: 17 days
The month with the highest number of rainy days is June (17 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in June
Illinois City, IL
- Average snowfall in June: 0"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Illinois City, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (10.3 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
Illinois City, IL
- Average daylight in June: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in June: 9h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in June
Illinois City, IL
- Average sunshine days in June: 10.8 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in June
Illinois City, IL
- Average UV index in June: 6
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in June
Illinois City, IL
- Average cloud cover in June: 32
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in June
Illinois City, 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).
