August weather forecastBlack River Falls, WI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Black River Falls, Wisconsin, with an average temperature fluctuating between 77°F (25°C) and 57.9°F (14.4°C).Temperature
As Black River Falls steps into August, the average high-temperature holds at a still warm 77°F (25°C), hinting at a minor fluctuation from the prior month. Black River Falls, during August, witnesses an average low-temperature of 57.9°F (14.4°C).Humidity
In August, the average relative humidity is 81%.Rainfall
In August, in Black River Falls, the rain falls for 12.4 days. Throughout August, 1.77" (45mm) of precipitation is accumulated. In Black River Falls, during the entire year, the rain falls for 120.8 days and collects up to 16.34" (415mm) of precipitation.Snowfall
In Black River Falls, snow does not fall in June through September.Daylight
In Black River Falls, the average length of the day in August is 13h and 58min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:27 pm. On the last day of August, in Black River Falls, Wisconsin, sunrise is at 6:26 am and sunset at 7:40 pm CDT.
Sunshine
In Black River Falls, the average sunshine in August is 9.7h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The average daily UV index of 5 in August transforms into the following instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Black River Falls, WI
- Average high temperature in August: 77°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in August: 57.9°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).
Average pressure in August
Black River Falls, WI
- Average pressure in August: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Black River Falls, WI
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in August
Black River Falls, WI
- Average humidity in August: 81%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (77%).
Average rainfall in August
Black River Falls, WI
- Average rainfall in August: 1.77"
The wettest month (with the highest rainfall) is June (2.91").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in August
Black River Falls, WI
- Average rainfall days in August: 12.4 days
The month with the highest number of rainy days is June (17.1 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in August
Black River Falls, WI
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Black River Falls, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Black River Falls, WI
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- 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 0min).
Average sunshine days in August
Black River Falls, WI
- Average sunshine days in August: 15.7 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in August
Black River Falls, WI
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in August
Black River Falls, WI
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in August
Black River Falls, WI
- Average visibility in August: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August, September and December (5mi).
