August weather forecastCassville, WI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Cassville, Wisconsin, with temperature in the range of an average low of 59.5°F (15.3°C) and an average high of 78.4°F (25.8°C).Temperature
August brings an average high-temperature of a still warm 78.4°F (25.8°C), showing a slight difference from July's 79.9°F (26.6°C). Cassville's temperature lowers to a mean of 59.5°F (15.3°C) during the nights in August.Humidity
The average relative humidity in August is 81%.Rainfall
In Cassville, in August, during 12.6 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. Throughout the year, in Cassville, there are 138.5 rainfall days, and 28.46" (723mm) of precipitation is accumulated.Snowfall
In Cassville, snow does not fall in June through September.Daylight
In August, the average length of the day is 13h and 52min.On the first day of August, sunrise is at 5:56 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:39 pm CDT.
Sunshine
July and August, with an average of 9.9h of sunshine, are months with the most sunshine in Cassville.UV index
The average daily maximum UV index in August in Cassville, Wisconsin, is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 5 in August translates into this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Cassville, WI
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in August: 59.5°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in August
Cassville, WI
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Cassville, 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
Cassville, WI
- Average humidity in August: 81%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (75%).
Average rainfall in August
Cassville, WI
- Average rainfall in August: 1.81"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in August
Cassville, WI
- Average rainfall days in August: 12.6 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in August
Cassville, WI
- Average snowfall in August: 0"
The month with the highest snowfall is January (5.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Cassville, WI
- 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
Cassville, 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 54min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Cassville, WI
- Average sunshine days in August: 16.6 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in August
Cassville, WI
- 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, November and December (UV index 1).
Average cloud cover in August
Cassville, WI
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in August
Cassville, WI
- 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).





