August weather forecastSaint Anne, IL
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Saint Anne, Illinois, with an average temperature fluctuating between 62.6°F (17°C) and 79.7°F (26.5°C).Temperature
The transition from July to August brings an average high-temperature of a still moderately hot 79.7°F (26.5°C), barely different from July's 81.1°F (27.3°C). Throughout the month of August, Saint Anne witnesses an average low-temperature of 62.6°F (17°C).Humidity
The average relative humidity in August in Saint Anne is 83%.Rainfall
In Saint Anne, during August, the rain falls for 13.7 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, there are 132 rainfall days, and 15.16" (385mm) of precipitation is accumulated.Snowfall
In Saint Anne, snow does not fall in May through October.Daylight
The average length of the day in August in Saint Anne is 13h and 46min.On the first day of the month, sunrise is at 5:47 am and sunset at 8:06 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:24 pm CDT.
Sunshine
June through August, with an average of 9.8h of sunshine, are months with the most sunshine in Saint Anne.UV index
In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in August converts into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Saint Anne, IL
- Average high temperature in August: 79.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in August: 62.6°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in August
Saint Anne, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Saint Anne, IL
- Average wind speed in August: 6.2mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in August
Saint Anne, IL
- Average humidity in August: 83%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Saint Anne, IL
- Average rainfall in August: 1.61"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in August
Saint Anne, IL
- Average rainfall days in August: 13.7 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in August
Saint Anne, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Saint Anne, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.3 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
Saint Anne, IL
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 9h and 48min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in August
Saint Anne, IL
- Average sunshine days in August: 12.7 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in August
Saint Anne, 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
Saint Anne, IL
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Saint Anne, 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).





