August weather forecast
Chicago Ridge, IL

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Weather in August

August, the last month of the summer in Chicago Ridge, is also a moderately hot month, with an average temperature fluctuating between 79.9°F (26.6°C) and 65.8°F (18.8°C).

Temperature

The average high-temperature is a still moderately hot 79.9°F (26.6°C) in August, hardly different from the 81°F (27.2°C) recorded in July. During August, Chicago Ridge witnesses a consistent average low-temperature of 65.8°F (18.8°C).

Humidity

In Chicago Ridge, the average relative humidity in August is 76%.

Rainfall

In August, the rain falls for 16.3 days. Throughout August, 2.72" (69mm) of precipitation is accumulated. In Chicago Ridge, during the entire year, the rain falls for 147.7 days and collects up to 23.62" (600mm) of precipitation.

Snowfall

In Chicago Ridge, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 48min.
On the first day of the month, sunrise is at 5:46 am and sunset at 8:08 pm. On the last day of August, in Chicago Ridge, Illinois, sunrise is at 6:16 am and sunset at 7:25 pm CDT.

Sunshine

The month with the most sunshine is August, with an average of 10.5h of sunshine.

UV index

June 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 exposure to the Sun's UV rays for the average person.
Note: An average UV index of 6 in August transforms into this advice:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

August temperatures vary between a high-temperature of 79.9°F (26.6°C) and a low-temperature of 65.8°F (18.8°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is computed to be 86°F (30°C).

What is the average humidity in August?

In Chicago Ridge, the average relative humidity in August is 76%.

How much does it rain in August?

In Chicago Ridge, during August, the rain falls for 16.3 days and regularly aggregates up to 2.72" (69mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 48min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 5:46 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:25 pm CDT.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 10.5h of sunshine.

How long on average sun shines in August?

In Chicago Ridge, the average sunshine duration in August is 10.5h.

What is the month with the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

How high is the UV index in August?

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Chicago Ridge, IL

Average temperature in August - Chicago Ridge, IL
  • Average high temperature in August: 79.9°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in August
Chicago Ridge, IL

Average pressure in August - Chicago Ridge, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Chicago Ridge, IL

Average wind speed in August - Chicago Ridge, IL
  • Average wind speed in August: 6.5mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in August
Chicago Ridge, IL

Average humidity in August - Chicago Ridge, IL
  • Average humidity in August: 76%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Chicago Ridge, IL

Average rainfall in August - Chicago Ridge, IL
  • Average rainfall in August: 2.72"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.02").

Average rainfall days in August
Chicago Ridge, IL

Average rainfall days in August - Chicago Ridge, IL
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in August
Chicago Ridge, IL

Average snowfall in August - Chicago Ridge, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Chicago Ridge, IL

Average snowfall days in August - Chicago Ridge, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (11.8 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
Chicago Ridge, IL

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in August
Chicago Ridge, IL

Average sunshine days in August - Chicago Ridge, IL
  • Average sunshine days in August: 10 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in August
Chicago Ridge, IL

Average UV index in August - Chicago Ridge, IL
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Chicago Ridge, IL

Average cloud cover in August - Chicago Ridge, IL
  • Average cloud cover in August: 28

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in August
Chicago Ridge, IL

Average visibility in August - Chicago Ridge, IL
  • Average visibility in August: 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).

Chicago Ridge, Illinois, USA

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