August weather forecastStockton, IL
August
Weather in August
The last month of the summer, August, is another warm month in Stockton, Illinois, with an average temperature varying between 78.4°F (25.8°C) and 60.6°F (15.9°C).Temperature
Stockton experiences a minor change to a still warm 78.4°F (25.8°C) in average high-temperature during August, closely reflecting July. An average low-temperature of 60.6°F (15.9°C) is noted during the month of August.Humidity
In Stockton, Illinois, the average relative humidity in August is 82%.Rainfall
In Stockton, in August, during 13.3 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Stockton, during the entire year, the rain falls for 142 days and collects up to 27.95" (710mm) of precipitation.Snowfall
In Stockton, snow does not fall in May through September.Daylight
In August, the average length of the day in Stockton is 13h and 50min.On the first day of August in Stockton, Illinois, sunrise is at 5:53 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:35 pm CDT.
Sunshine
The months with the most sunshine are July and August, with an average of 9.7h of sunshine.UV index
In August, the average daily maximum UV index in Stockton is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 5 in August translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. To guard against the harmful effects of the Sun, minimize exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Stockton, IL
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in August: 60.6°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in August
Stockton, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Stockton, IL
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in August
Stockton, IL
- Average humidity in August: 82%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).
Average rainfall in August
Stockton, IL
- Average rainfall in August: 1.85"
The wettest months (with the highest rainfall) are May and June (3.66").
The driest months (with the least rainfall) are January and February (1.26").
Average rainfall days in August
Stockton, IL
- Average rainfall days in August: 13.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in August
Stockton, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.84").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Stockton, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Stockton, 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 6min).
- Average sunshine in August: 9h and 42min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Stockton, IL
- Average sunshine days in August: 16 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in August
Stockton, IL
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Stockton, IL
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in August
Stockton, IL
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).





