August weather forecast
Atlanta, IL

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Weather in August

August, the last month of the summer in Atlanta, is also a moderately hot month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 63.5°F (17.5°C).

Temperature

As Atlanta transitions from July to August, the average high-temperatures adjust to a still moderately hot 81.1°F (27.3°C), nearly the same as the previous 81.5°F (27.5°C). Atlanta's average low-temperature during August nights is observed to be a refreshing 63.5°F (17.5°C).

Heat index

August's mean heat index is evaluated at a hot 87.8°F (31°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.
When assessing, remember that heat index measurements are for light winds and shaded spots. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

The average relative humidity in August in Atlanta is 82%.

Rainfall

In Atlanta, during August, the rain falls for 13.3 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, there are 135 rainfall days, and 17.72" (450mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 43min.
On the first day of the month, sunrise is at 5:55 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:24 am and sunset at 7:29 pm CDT.

Sunshine

The average sunshine in August in Atlanta is 9.8h.

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 hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 6 during August, leads to the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

What is the usual temperature for Atlanta in August?

The high-temperature, in August, in Atlanta, records 81.1°F (27.3°C), while the low-temperature is 63.5°F (17.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in August is evaluated at 87.8°F (31°C).

What is the average humidity in August in Atlanta?

In Atlanta, Illinois, the average relative humidity in August is 82%.

How much does it rain in Atlanta in August?

In Atlanta, in August, it is raining for 13.3 days, with typically 1.65" (42mm) of accumulated precipitation.

When it does not snow in Atlanta?

May through October are months without snowfall in Atlanta.

How many hours of daylight does Atlanta have in August?

The average day length in August in Atlanta is 13h and 43min.

When are sunrise and sunset in August in Atlanta?

On the first day of August in Atlanta, Illinois, sunrise is at 5:55 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:29 pm CDT.

How long on average sun shines in August in Atlanta?

In Atlanta, Illinois, the average sunshine duration in August is 9.8h.

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

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

What is the UV index reading in August in Atlanta?

In Atlanta, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
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
Atlanta, IL

Average temperature in August - Atlanta, IL
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in August: 63.5°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in August
Atlanta, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Atlanta, IL

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

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in August
Atlanta, IL

Average humidity in August - Atlanta, IL
  • Average humidity in August: 82%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Atlanta, IL

Average rainfall in August - Atlanta, IL
  • Average rainfall in August: 1.65"

The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is December (0.87").

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Average rainfall days in August
Atlanta, IL

Average rainfall days in August - Atlanta, IL
  • Average rainfall days in August: 13.3 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (5.9 days).

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Average snowfall in August
Atlanta, IL

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

The month with the highest snowfall is January (2.2").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Atlanta, IL

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

The month with the highest number of snowfall days is January (9.5 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
Atlanta, IL

Average daylight in August / Average sunshine in August - Atlanta, 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 24min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in August
Atlanta, IL

Average sunshine days in August - Atlanta, IL
  • Average sunshine days in August: 14.3 days

The months with the most sunshine days are November and December (20 days).
The month with the least sunshine days is May (11.6 days).

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Average UV index in August
Atlanta, IL

Average UV index in August - Atlanta, 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
Atlanta, IL

Average cloud cover in August - Atlanta, IL
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).

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Average visibility in August
Atlanta, IL

Average visibility in August - Atlanta, IL
  • Average visibility in August: 5mi

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

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Atlanta, Illinois, USA

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