August weather forecastBelleville, WI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Belleville, Wisconsin, with an average temperature ranging between min 59.7°F (15.4°C) and max 77.5°F (25.3°C).Temperature
With the start of August, Belleville measures an average high-temperature of a still moderately hot 77.5°F (25.3°C), not significantly differing from July's 79°F (26.1°C). During August nights, Belleville records an average temperature of 59.7°F (15.4°C).Humidity
In August, the average relative humidity is 82%.Rainfall
In August, in Belleville, the rain falls for 13.6 days. Throughout August, 1.38" (35mm) of precipitation is accumulated. In Belleville, during the entire year, the rain falls for 124.7 days and collects up to 15.16" (385mm) of precipitation.Snowfall
In Belleville, snow does not fall in June through September.Daylight
The average length of the day in August in Belleville, Wisconsin, is 13h and 53min.On the first day of August in Belleville, sunrise is at 5:50 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:33 pm CDT.
Sunshine
The average sunshine in August in Belleville is 9.7h.UV index
In August, the average daily maximum UV index in Belleville is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: An average UV index of 5 in August transforms into this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Belleville, WI
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in August: 59.7°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in August
Belleville, WI
- Average pressure in August: 29.97"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Belleville, WI
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in August
Belleville, WI
- Average humidity in August: 82%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in August
Belleville, WI
- Average rainfall in August: 1.38"
The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in August
Belleville, WI
- Average rainfall days in August: 13.6 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in August
Belleville, WI
- Average snowfall in August: 0"
The months with the highest snowfall are January and February (2.52").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Belleville, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Belleville, WI
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- 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 24min).
Average sunshine days in August
Belleville, WI
- Average sunshine days in August: 15.4 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in August
Belleville, WI
- Average UV index in August: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in August
Belleville, WI
- Average cloud cover in August: 34
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in August
Belleville, WI
- Average visibility in August: 5mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
