August weather forecastHales Corners, WI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Hales Corners, Wisconsin, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 77.4°F (25.2°C).Temperature
August's onset records an average high-temperature of a still moderately hot 77.4°F (25.2°C), a near match to July's 78.3°F (25.7°C). During August, the average low-temperature is recorded at a comfortable 63.5°F (17.5°C).Humidity
In August, the average relative humidity is 78%.Rainfall
In Hales Corners, in August, during 15.2 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Hales Corners, Wisconsin, during the entire year, the rain falls for 129 days and collects up to 20.35" (517mm) of precipitation.Snowfall
In Hales Corners, snow does not fall in June through September.Daylight
In Hales Corners, Wisconsin, the average length of the day in August is 13h and 53min.On the first day of the month, sunrise is at 5:44 am and sunset at 8:12 pm. On the last day of August, sunrise is at 6:16 am and sunset at 7:28 pm CDT.
Sunshine
August has the most sunshine of the year in Hales Corners, with an average of 10.4h of sunshine.UV index
The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In August, a daily UV index of 5 turns into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Hales Corners, WI
- Average high temperature in August: 77.4°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in August: 63.5°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
Hales Corners, WI
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Hales Corners, WI
- Average wind speed in August: 7mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in August
Hales Corners, WI
- Average humidity in August: 78%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in August
Hales Corners, WI
- Average rainfall in August: 2.32"
The wettest month (with the highest rainfall) is July (2.6").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days in August
Hales Corners, WI
- Average rainfall days in August: 15.2 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in August
Hales Corners, WI
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Hales Corners, 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
Hales Corners, 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: 10h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Hales Corners, WI
- Average sunshine days in August: 12.5 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in August
Hales Corners, WI
- 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
Hales Corners, WI
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in August
Hales Corners, WI
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





