August weather forecast
Kankakee, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Kankakee, Illinois, with temperature in the range of an average high of 80.1°F (26.7°C) and an average low of 62.6°F (17°C).

Temperature

As August takes hold, the average high-temperature is a still moderately hot 80.1°F (26.7°C), nearly mirroring that of the previous month. Throughout the month of August, Kankakee sees a steady low-temperature average of 62.6°F (17°C).

Humidity

The average relative humidity in August is 83%.

Rainfall

In Kankakee, Illinois, in August, during 8.8 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. In Kankakee, during the entire year, the rain falls for 80.5 days and collects up to 6.22" (158mm) of precipitation.

Snowfall

In Kankakee, Illinois, snow does not fall in May through October.

Daylight

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 Kankakee, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 5 during August translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

What is the usual temperature for Kankakee in August?

In Kankakee, 80.1°F (26.7°C) is the average high-temperature and 62.6°F (17°C) is the average low-temperature during August. In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in August in Kankakee?

In Kankakee, the average relative humidity in August is 83%.

How much does it rain in Kankakee in August?

In Kankakee, in August, during 8.8 rainfall days, 0.47" (12mm) of precipitation is typically accumulated.

When it does not snow in Kankakee?

In Kankakee, snow does not fall in May through October.

What is the average length of the day in August in Kankakee?

In August, the average day length in Kankakee is 13h and 46min.

When are sunrise and sunset in August in Kankakee?

On the first day of August in Kankakee, sunrise is at 5:47 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:25 pm CDT.

What month has the most sunshine in Kankakee?

August has the most sunshine of the year in Kankakee, Illinois, with an average of 9.9h of sunshine.

How long on average sun shines in August in Kankakee?

The average sunshine duration in August is 9.9h.

What is the UV index reading in August in Kankakee?

In August, the average daily maximum UV index in Kankakee is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Kankakee, IL

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).

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Average pressure in August
Kankakee, IL

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).

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Average wind speed in August
Kankakee, IL

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).

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Average humidity in August
Kankakee, IL

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%).

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Average rainfall in August
Kankakee, IL

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").

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Average rainfall days in August
Kankakee, IL

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).

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Average snowfall in August
Kankakee, IL

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").

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Average snowfall days in August
Kankakee, IL

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).

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Average daylight in August /
Average sunshine in August
Kankakee, IL

Average daylight in August / Average sunshine in August - Kankakee, IL
  • Average daylight in August: 13h and 5min

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 5min

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).

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Average sunshine days in August
Kankakee, IL

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).

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Average UV index in August
Kankakee, IL

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).

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Average cloud cover in August
Kankakee, IL

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).

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Average visibility in August
Kankakee, IL

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).

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Kankakee, Illinois, USA

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