June weather forecastOkawville, IL
June
Weather in June
The first month of the summer, June, is also a moderately hot month in Okawville, Illinois, with an average temperature fluctuating between 66.4°F (19.1°C) and 83.5°F (28.6°C).Temperature
June's arrival brings a slight change in high-temperatures, adjusting from 74.8°F (23.8°C) in May to a still warm 83.5°F (28.6°C). Throughout June, Okawville's nights cool down to an average of 66.4°F (19.1°C).Heat index
The average heat index in June is evaluated at a hot 91.4°F (33°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.One should consider that heat index numbers are for shaded settings and light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In Okawville, the average relative humidity in June is 77%.Rainfall
In Okawville, Illinois, during June, the rain falls for 17.1 days and regularly aggregates up to 4.37" (111mm) of precipitation. Throughout the year, there are 166.8 rainfall days, and 37.83" (961mm) of precipitation is accumulated.Snowfall
May through August and October are months without snowfall.Daylight
With an average of 14h and 48min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 5:35 am and sunset at 8:16 pm. On the last day of June, sunrise is at 5:37 am and sunset at 8:26 pm CDT.
Sunshine
The month with the most sunshine is June, with an average of 10.5h of sunshine.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: In June, an average UV index of 6 transforms into the following instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Okawville, IL
- Average high temperature in June: 83.5°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in June: 66.4°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in June
Okawville, IL
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in June
Okawville, IL
- Average wind speed in June: 6.8mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in June
Okawville, IL
- Average humidity in June: 77%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Okawville, IL
- Average rainfall in June: 4.37"
The wettest month (with the highest rainfall) is April (4.45").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in June
Okawville, IL
- Average rainfall days in June: 17.1 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is December (9.2 days).
Average snowfall in June
Okawville, IL
- Average snowfall in June: 0"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in June
Okawville, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in June /
Average sunshine in June
Okawville, IL
- Average daylight in June: 14h and 48min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in June: 10h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in June
Okawville, IL
- Average sunshine days in June: 10 days
The months with the most sunshine days are October and November (17.5 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in June
Okawville, IL
- Average UV index in June: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in June
Okawville, IL
- Average cloud cover in June: 28
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in June
Okawville, 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).





