August weather forecastKankakee, IL
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Kankakee, Illinois, with an average temperature varying between 80.1°F (26.7°C) and 62.6°F (17°C).Temperature
Kankakee measures an average high-temperature of a still moderately hot 80.1°F (26.7°C) in August, nearly consistent with the preceding month. In the month of August, the nighttime temperature in Kankakee dips to a steady average of 62.6°F (17°C).Humidity
In August, the average relative humidity is 83%.Rainfall
In Kankakee, in August, it is raining for 8.8 days, with typically 0.47" (12mm) of accumulated precipitation. Throughout the year, there are 80.5 rainfall days, and 6.22" (158mm) of precipitation is accumulated.Snowfall
In Kankakee, snow does not fall in May through October.Daylight
In Kankakee, the average length of the day in August is 13h and 46min.On the first day of the month, sunrise is at 5:47 am and sunset at 8:07 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:25 pm CDT.
Sunshine
The month with the most sunshine is August, with an average of 9.9h of sunshine.UV index
In August, the average daily maximum UV index in Kankakee is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 5 in August transforms into this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Kankakee, IL
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in August: 62.6°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in August
Kankakee, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Kankakee, IL
- Average wind speed in August: 6.2mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in August
Kankakee, IL
- Average humidity in August: 83%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Kankakee, IL
- Average rainfall in August: 0.47"
The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is November (0.28").
Average rainfall days in August
Kankakee, IL
- Average rainfall days in August: 8.8 days
The month with the highest number of rainy days is May (11.4 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in August
Kankakee, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Kankakee, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Kankakee, IL
- Average daylight in August: 13h and 48min
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 18min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Kankakee, IL
- Average sunshine days in August: 18.9 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is June (15.7 days).
Average UV index in August
Kankakee, IL
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Kankakee, IL
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in August
Kankakee, IL
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





