August weather forecastLake Geneva, WI
August
Weather in August
August, the last month of the summer in Lake Geneva, is another warm month, with an average temperature ranging between max 77.5°F (25.3°C) and min 60.1°F (15.6°C).Temperature
The initiation of August records an average high-temperature of a still warm 77.5°F (25.3°C), displaying a near consistency with the previous month. In August, the temperature in Lake Geneva drops to an average of 60.1°F (15.6°C) at night.Humidity
In Lake Geneva, Wisconsin, the average relative humidity in August is 83%.Rainfall
In August, the rain falls for 16.2 days. Throughout August, 2.8" (71mm) of precipitation is accumulated. In Lake Geneva, Wisconsin, during the entire year, the rain falls for 139.3 days and collects up to 25.79" (655mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Lake Geneva, the average length of the day in August is 13h and 52min.On the first day of the month, sunrise is at 5:46 am and sunset at 8:13 pm. On the last day of August, in Lake Geneva, sunrise is at 6:18 am and sunset at 7:29 pm CDT.
Sunshine
The months with the most sunshine are July and August, with an average of 9.7h of sunshine.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Lake Geneva. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 during August translates into the following directions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Lake Geneva, WI
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in August: 60.1°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in August
Lake Geneva, WI
- Average pressure in August: 29.97"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Lake Geneva, WI
- Average wind speed in August: 6.3mph
The windiest months (with the highest average wind speed) are February and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in August
Lake Geneva, WI
- Average humidity in August: 83%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in August
Lake Geneva, WI
- Average rainfall in August: 2.8"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is December (1.14").
Average rainfall days in August
Lake Geneva, WI
- Average rainfall days in August: 16.2 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in August
Lake Geneva, WI
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Lake Geneva, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Lake Geneva, 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 months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in August
Lake Geneva, WI
- Average sunshine days in August: 11.3 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in August
Lake Geneva, 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 and December (UV index 1).
Average cloud cover in August
Lake Geneva, WI
- Average cloud cover in August: 34
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in August
Lake Geneva, WI
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
