August weather forecast
Elvaston, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Elvaston, Illinois, with an average temperature ranging between max 82.8°F (28.2°C) and min 64°F (17.8°C).

Temperature

August welcomes an average high-temperature of a still moderately hot 82.8°F (28.2°C), not much different from the preceding month. Throughout the month of August, Elvaston expects an average low of 64°F (17.8°C).

Heat index

August's mean heat index is calculated to be a hot 89.6°F (32°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.
Heat index details are generally centered around shaded locations and a mild breeze. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

In Elvaston, the average relative humidity in August is 78%.

Rainfall

In Elvaston, in August, during 11.5 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 129.9 rainfall days, and 20.71" (526mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in August is 13h and 43min.
On the first day of the month, sunrise is at 6:03 am and sunset at 8:19 pm. On the last day of August, sunrise is at 6:32 am and sunset at 7:38 pm CDT.

Sunshine

The average sunshine in August is 10.1h.

UV index

June through 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 hazard from unsafe exposure to UV radiation for the average person.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

The high-temperature during August is 82.8°F (28.2°C) and the low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 89.6°F (32°C).

What is the average humidity in August?

In Elvaston, the average relative humidity in August is 78%.

How much does it rain in August?

In Elvaston, in August, it is raining for 11.5 days, with typically 1.77" (45mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

In Elvaston, the average day length in August is 13h and 43min.

When is the sunrise / sunset in August in Elvaston?

In August, on the first day of the month, sunrise is at 6:03 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:38 pm CDT.

How many hours of sunshine does Elvaston have in August?

In Elvaston, the average sunshine duration in August is 10.1h.

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.

What is the UV index intensity in August in Elvaston?

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

Average temperature in August - Elvaston, IL
  • Average high temperature in August: 82.8°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

Average pressure in August
Elvaston, IL

Average pressure in August - Elvaston, IL
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in August
Elvaston, IL

Average wind speed in August - Elvaston, IL
  • Average wind speed in August: 6.6mph

The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in August
Elvaston, IL

Average humidity in August - Elvaston, IL
  • Average humidity in August: 78%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Elvaston, IL

Average rainfall in August - Elvaston, IL
  • Average rainfall in August: 1.77"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is January (0.83").

Average rainfall days in August
Elvaston, IL

Average rainfall days in August - Elvaston, IL
  • Average rainfall days in August: 11.5 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (4.5 days).

Average snowfall in August
Elvaston, IL

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

The month with the highest snowfall is January (2.91").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Elvaston, IL

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

The month with the highest number of snowfall days is January (7.9 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
Elvaston, IL

Average daylight in August / Average sunshine in August - Elvaston, IL
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in August
Elvaston, IL

Average sunshine days in August - Elvaston, IL
  • Average sunshine days in August: 17.5 days

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.5 days).

Average UV index in August
Elvaston, IL

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in August
Elvaston, IL

Average cloud cover in August - Elvaston, IL
  • Average cloud cover in August: 28

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in August
Elvaston, IL

Average visibility in August - Elvaston, 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).

Elvaston, Illinois, USA

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