August weather forecast
Carrollton, IL

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Weather in August

August, the last month of the summer in Carrollton, is also a moderately hot month, with an average temperature fluctuating between 83.5°F (28.6°C) and 65.5°F (18.6°C).

Temperature

Carrollton's weather in August, with an average high-temperature of a still moderately hot 83.5°F (28.6°C), subtly shifts from July's 84.4°F (29.1°C). An average low-temperature of 65.5°F (18.6°C) is recorded during the nights in August in Carrollton.

Heat index

The average heat index in August is calculated to be a tropical 91.4°F (33°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

The average relative humidity in August in Carrollton is 79%.

Rainfall

In Carrollton, in August, during 11.9 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. In Carrollton, Illinois, during the entire year, the rain falls for 120.6 days and collects up to 14.17" (360mm) of precipitation.

Snowfall

In Carrollton, snow does not fall in April through October.

Daylight

In Carrollton, the average length of the day in August is 13h and 40min.
On the first day of August, sunrise is at 6:02 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:33 pm CDT.

Sunshine

The average sunshine in August is 10h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

How hot does it get in Carrollton in August?

An average high-temperature, in August, in Carrollton, is 83.5°F (28.6°C) and the average low-temperature is 65.5°F (18.6°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 91.4°F (33°C).

What is the average humidity in August in Carrollton?

In August, the average relative humidity in Carrollton is 79%.

How much does it rain in Carrollton in August?

In Carrollton, in August, it is raining for 11.9 days, with typically 1.61" (41mm) of accumulated precipitation.

When it does not snow in Carrollton?

In Carrollton, Illinois, snow does not fall in April through October.

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

In August, the average day length is 13h and 40min.

What time are sunrise and sunset in August in Carrollton?

In August, on the first day of the month, sunrise is at 6:02 am and sunset at 8:13 pm. On the last day of the month, in Carrollton, Illinois, sunrise is at 6:29 am and sunset at 7:33 pm CDT.

How many hours of sunshine does Carrollton have in August?

In Carrollton, the average sunshine duration in August is 10h.

What are the months with the highest UV index in Carrollton?

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

How high is the UV index in August in Carrollton?

The average daily maximum UV index in August in Carrollton is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Carrollton, IL

Average temperature in August - Carrollton, IL
  • Average high temperature in August: 83.5°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in August: 65.5°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

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Average pressure in August
Carrollton, IL

Average pressure in August - Carrollton, 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 (29.91"Hg).

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Average wind speed in August
Carrollton, IL

Average wind speed in August - Carrollton, IL
  • Average wind speed in August: 5.9mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

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Average humidity in August
Carrollton, IL

Average humidity in August - Carrollton, IL
  • Average humidity in August: 79%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Carrollton, IL

Average rainfall in August - Carrollton, IL
  • Average rainfall in August: 1.61"

The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is November (0.67").

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Average rainfall days in August
Carrollton, IL

Average rainfall days in August - Carrollton, IL
  • Average rainfall days in August: 11.9 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (5.6 days).

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Average snowfall in August
Carrollton, IL

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

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Carrollton, IL

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

The month with the highest number of snowfall days is January (6 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
Carrollton, IL

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 0min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in August
Carrollton, IL

Average sunshine days in August - Carrollton, IL
  • Average sunshine days in August: 15.5 days

The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is June (12.4 days).

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Average UV index in August
Carrollton, IL

Average UV index in August - Carrollton, 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).

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Average cloud cover in August
Carrollton, IL

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

The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 28).

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Average visibility in August
Carrollton, IL

Average visibility in August - Carrollton, 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).

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Carrollton, Illinois, USA

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