August weather forecast
Countryside, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Countryside, Illinois, with an average temperature fluctuating between 80.6°F (27°C) and 65.3°F (18.5°C).

Temperature

Countryside, Illinois, in August witnesses an average high-temperature of a still moderately hot 80.6°F (27°C), indicating a slight variation from July's 81.9°F (27.7°C). Throughout August, Countryside encounters an average temperature drop to a comfortable 65.3°F (18.5°C).

Heat index

August's mean heat index is computed to be 84.2°F (29°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.

Humidity

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

Rainfall

In Countryside, in August, it is raining for 17.4 days, with typically 3.46" (88mm) of accumulated precipitation. In Countryside, during the entire year, the rain falls for 166.8 days and collects up to 34.96" (888mm) of precipitation.

Snowfall

In Countryside, Illinois, snow does not fall in May through September.

Daylight

In August, the average length of the day is 13h and 49min.
On the first day of August, sunrise is at 5:46 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:26 pm CDT.

Sunshine

August has the most sunshine of the year, with an average of 10.3h of sunshine.

UV index

July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 6 in August transforms into this advice:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

What are the temperatures in Countryside in August?

The average high-temperature and low-temperature in Countryside during August are 80.6°F (27°C) and 65.3°F (18.5°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 84.2°F (29°C).

What is the average humidity in August in Countryside?

The average relative humidity in August in Countryside is 76%.

How many days does it rain in August in Countryside?

In August, in Countryside, Illinois, the rain falls for 17.4 days. Throughout August, 3.46" (88mm) of precipitation is accumulated.

When it does not snow in Countryside?

In Countryside, Illinois, snow does not fall in May through September.

How many hours of daylight does Countryside have in August?

In August, the average day length is 13h and 49min.

What time are sunrise and sunset in August in Countryside?

On the first day of August in Countryside, Illinois, sunrise is at 5:46 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:26 pm CDT.

What month has the most sunshine in Countryside?

August has the most sunshine of the year in Countryside, Illinois, with an average of 10.3h of sunshine.

How many hours of sunshine does Countryside have in August?

In August, the average sunshine duration in Countryside is 10.3h.

When is the highest UV index in Countryside?

July and August, with an average maximum UV index of 6, are months with the highest UV index in Countryside, Illinois.

What is the UV index reading in August in Countryside?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Countryside, IL

Average temperature in August - Countryside, IL
  • Average high temperature in August: 80.6°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in August: 65.3°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 (18.3°F).

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Average pressure in August
Countryside, IL

Average pressure in August - Countryside, 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).

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Average wind speed in August
Countryside, IL

Average wind speed in August - Countryside, IL
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in August
Countryside, IL

Average humidity in August - Countryside, 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%).

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Average rainfall in August
Countryside, IL

Average rainfall in August - Countryside, IL
  • Average rainfall in August: 3.46"

The wettest month (with the highest rainfall) is May (4.61").
The driest months (with the least rainfall) are November and December (1.77").

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Average rainfall days in August
Countryside, IL

Average rainfall days in August - Countryside, IL
  • Average rainfall days in August: 17.4 days

The month with the highest number of rainy days is June (19.4 days).
The month with the least rainy days is February (5.9 days).

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Average snowfall in August
Countryside, IL

Average snowfall in August - Countryside, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (5.28").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Countryside, IL

Average snowfall days in August - Countryside, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (13.3 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
Countryside, IL

Average daylight in August / Average sunshine in August - Countryside, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in August
Countryside, IL

Average sunshine days in August - Countryside, IL
  • Average sunshine days in August: 9.5 days

The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is June (8.2 days).

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Average UV index in August
Countryside, IL

Average UV index in August - Countryside, IL
  • Average UV index in August: 6

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

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Average cloud cover in August
Countryside, IL

Average cloud cover in August - Countryside, IL
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in August
Countryside, IL

Average visibility in August - Countryside, IL
  • Average visibility in August: 6mi

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

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Countryside, Illinois, USA

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