August weather forecastAurora, IL

August
Weather in August
August sees a slight decline in Aurora's temperature, providing some relief to the residents from July's intense heat. The weather remains characteristically humid, consistent with the typical Midwest summer. With the UV index dropping to five, the sun's intensity reduces marginally. Falling pressure levels parallel the declining temperature, signaling the eventual retreat of summer. Despite these changes, sunshine hours remain relatively high, affirming the continuation of summer.Temperature
During August, Aurora observes a subtle ascent to a still moderately hot 79.3°F (26.3°C) from July's 81°F (27.2°C) in the average high-temperature. During the month of August, the temperature falls to an average of 62.4°F (16.9°C).Humidity
In August, the average relative humidity is 82%.Rainfall
In Aurora, during August, the rain falls for 12.5 days and regularly aggregates up to 1.06" (27mm) of precipitation. In Aurora, during the entire year, the rain falls for 120.4 days and collects up to 12.32" (313mm) of precipitation.Snowfall
In Aurora, snow does not fall in May through September.Daylight
In Aurora, Illinois, the average length of the day in August is 13h and 49min.On the first day of the month, sunrise is at 5:48 am and sunset at 8:10 pm. On the last day of August, in Aurora, sunrise is at 6:18 am and sunset at 7:27 pm CDT.
Sunshine
In Aurora, the average sunshine in August is 9.7h.UV index
In Aurora, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 5 in August translates into the following instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Aurora, IL
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in August: 62.4°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in August
Aurora, 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
Aurora, IL
- Average wind speed in August: 6mph
The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in August
Aurora, IL
- Average humidity in August: 82%
The months with the highest relative humidity are January, February and July (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Aurora, IL
- Average rainfall in August: 1.06"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in August
Aurora, IL
- Average rainfall days in August: 12.5 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in August
Aurora, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Aurora, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Aurora, IL
- Average daylight in August: 13h and 48min
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: 9h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Aurora, IL
- Average sunshine days in August: 13.8 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in August
Aurora, IL
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Aurora, IL
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in August
Aurora, 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).





