August weather forecast
South Chicago Heights, IL

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Weather in August

August, the last month of the summer in South Chicago Heights, is also a moderately hot month, with an average temperature varying between 80.4°F (26.9°C) and 64°F (17.8°C).

Temperature

South Chicago Heights commences August with an average high-temperature of a still warm 80.4°F (26.9°C), maintaining a close resemblance to the previous month. In South Chicago Heights, the nighttime temperature averages to a refreshing 64°F (17.8°C) during August.

Humidity

In South Chicago Heights, the average relative humidity in August is 79%.

Rainfall

In August, the rain falls for 17.6 days. Throughout August, 3.31" (84mm) of precipitation is accumulated. In South Chicago Heights, during the entire year, the rain falls for 167.4 days and collects up to 35" (889mm) of precipitation.

Snowfall

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

Daylight

In South Chicago Heights, the average length of the day in August is 13h and 47min.
On the first day of the month, sunrise is at 5:46 am and sunset at 8:07 pm. On the last day of August, sunrise is at 6:16 am and sunset at 7:24 pm CDT.

Sunshine

August has the most sunshine of the year, with an average of 9.8h of sunshine.

UV index

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 5 in August transforms into the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

The average high-temperature and low-temperature during August are 80.4°F (26.9°C) and 64°F (17.8°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in July is evaluated at 89.6°F (32°C).

What is the average humidity in August in South Chicago Heights?

In South Chicago Heights, the average relative humidity in August is 79%.

How many days does it rain in August?

In South Chicago Heights, in August, during 17.6 rainfall days, 3.31" (84mm) of precipitation is typically accumulated.

When it does not snow?

In South Chicago Heights, Illinois, snow does not fall in May through September.

How many hours of daylight does South Chicago Heights have in August?

The average day length in August is 13h and 47min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:46 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:24 pm CDT.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 9.8h of sunshine.

How long on average sun shines in August?

In August, the average sunshine duration is 9.8h.

What is the UV index reading in August?

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's 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
South Chicago Heights, IL

Average temperature in August - South Chicago Heights, IL
  • Average high temperature in August: 80.4°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in August
South Chicago Heights, IL

Average pressure in August - South Chicago Heights, 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
South Chicago Heights, IL

Average wind speed in August - South Chicago Heights, IL
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in August
South Chicago Heights, IL

Average humidity in August - South Chicago Heights, IL
  • Average humidity in August: 79%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
South Chicago Heights, IL

Average rainfall in August - South Chicago Heights, IL
  • Average rainfall in August: 3.31"

The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is November (1.81").

Average rainfall days in August
South Chicago Heights, IL

Average rainfall days in August - South Chicago Heights, IL
  • Average rainfall days in August: 17.6 days

The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is February (6.2 days).

Average snowfall in August
South Chicago Heights, IL

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

The month with the highest snowfall is February (5.35").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
South Chicago Heights, IL

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

The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
South Chicago Heights, IL

Average daylight in August / Average sunshine in August - South Chicago Heights, 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 12min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in August
South Chicago Heights, IL

Average sunshine days in August - South Chicago Heights, IL
  • Average sunshine days in August: 9.3 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is July (7.8 days).

Average UV index in August
South Chicago Heights, IL

Average UV index in August - South Chicago Heights, IL
  • Average UV index in August: 5

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

Average cloud cover in August
South Chicago Heights, IL

Average cloud cover in August - South Chicago Heights, IL
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in August
South Chicago Heights, IL

Average visibility in August - South Chicago Heights, IL
  • Average visibility in August: 6mi

The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).

South Chicago Heights, Illinois, USA

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