Climate and monthly weather forecastLake Geneva, WI

Climate and monthly weather forecast

Weather in January

January, the same as December, in Lake Geneva, Wisconsin, is a freezing cold winter month, with temperature in the range of an average low of 13.3°F (-10.4°C) and an average high of 25.5°F (-3.6°C). With average temperatures fluctuating between a high of 25.5°F (-3.6°C) and a low of 13.3°F (-10.4°C), January stands out as the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Lake Geneva, is another freezing cold month, with an average temperature varying between 28.9°F (-1.7°C) and 16.2°F (-8.8°C). Upon the beginning of February, Lake Geneva's high-temperatures register at a still subzero cold 28.9°F (-1.7°C), closely mirroring the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Lake Geneva, Wisconsin, with an average temperature varying between 28.2°F (-2.1°C) and 42.1°F (5.6°C). With the onset of March, Lake Geneva's weather sees a temperature rise, transitioning from a freezing cold 28.9°F (-1.7°C) in February to a cold 42.1°F (5.6°C). Weather in March »

Weather in April

April in Lake Geneva, Wisconsin, is a fresh spring month, with an average temperature ranging between max 54.1°F (12.3°C) and min 37.9°F (3.3°C). April brings a temperature increase, with average high-temperatures moving from March's icy 42.1°F (5.6°C) to a fresh 54.1°F (12.3°C). Weather in April »

Weather in May

May, the last month of the spring in Lake Geneva, is a refreshing month, with temperature in the range of an average high of 66°F (18.9°C) and an average low of 48.7°F (9.3°C). Lake Geneva sees an increase in the average high-temperature with the arrival of May, moving from April's fresh 54.1°F (12.3°C) to a comfortable 66°F (18.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Lake Geneva, Wisconsin, with an average temperature ranging between min 57.7°F (14.3°C) and max 75.6°F (24.2°C). An escalation in the average high-temperature is seen with the onset of June, moving from a comfortable 66°F (18.9°C) in May to a warm 75.6°F (24.2°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Lake Geneva, Wisconsin, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 62.2°F (16.8°C). July, with an average high of 79.3°F (26.3°C) and a low of 62.2°F (16.8°C), signifies the warmest month of the year. Weather in July »

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). 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. Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Lake Geneva, Wisconsin, with an average temperature ranging between min 53.6°F (12°C) and max 71.6°F (22°C). A minor decrease in the average high-temperature is observed during September, shifting from a warm 77.5°F (25.3°C) in August to an agreeable 71.6°F (22°C). Weather in September »

Weather in October

October, the same as September, in Lake Geneva, Wisconsin, is another refreshing autumn month, with temperature in the range of an average low of 42.8°F (6°C) and an average high of 58.1°F (14.5°C). The start of October signals a decrease in the average high-temperature, transitioning from a pleasant 71.6°F (22°C) in September to a moderate 58.1°F (14.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Lake Geneva, is also a frosty month, with an average temperature varying between 30.6°F (-0.8°C) and 43.7°F (6.5°C). A distinct shift in the average high-temperature is signaled in November, moving down from a refreshing 58.1°F (14.5°C) in October to a chilly 43.7°F (6.5°C). Weather in November »

Weather in December

December, the first month of the winter in Lake Geneva, is also a subzero cold month, with an average temperature varying between 21.7°F (-5.7°C) and 31.8°F (-0.1°C). The onset of December comes with a shift in the average high-temperature, falling from a chilly 43.7°F (6.5°C) in November to a freezing cold 31.8°F (-0.1°C). Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The coldest month is January, with an average high-temperature of 25.5°F (-3.6°C) and an average low-temperature of 13.3°F (-10.4°C).

The most humid month is January, with an average relative humidity of 87%.

In Lake Geneva, during the entire year, the rain falls for 139.3 days and collects up to 25.79" (655mm) of precipitation.

January through May, October through December are months with snowfall.

January is the month with the most snowfall. Snow falls for 11.4 days and accumulates 4.69" (119mm) of snow.

Throughout the year, in Lake Geneva, there are 44 snowfall days, and 17.36" (441mm) of snow is accumulated.

With an average of 3.5h of sunshine, January has the least sunshine of the year in Lake Geneva, Wisconsin.

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Lake Geneva, Wisconsin.

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Lake Geneva, Wisconsin, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

April and October, with an average relative humidity of 77%, are the least humid months in Lake Geneva, Wisconsin.

The months with the highest UV index are May through August, with an average maximum UV index of 5.

The month with the most rainfall in Lake Geneva is June, when the rain falls for 17.4 days and typically aggregates up to 3.46" (88mm) of precipitation.

In Lake Geneva, snow does not fall in June through September.

June has the longest days of the year in Lake Geneva, Wisconsin, with an average of 15h and 18min of daylight.

Lake Geneva's July weather, marked by an average high temperature of 79.3°F (26.3°C) and an average low temperature of 62.2°F (16.8°C), is the warmest in the year.

July and August, with an average of 9.7h of sunshine, are months with the most sunshine in Lake Geneva, Wisconsin.

December is the month with the least rainfall in Lake Geneva. Rain falls for 5.7 days and accumulates 1.14" (29mm) of precipitation.

With an average of 9h and 6min of daylight, December has the shortest days of the year.

Average temperature
Lake Geneva, WI

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).

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
Lake Geneva, WI

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
Lake Geneva, WI

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
Lake Geneva, WI

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).

Average rainfall
Lake Geneva, WI

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
Lake Geneva, WI

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
Lake Geneva, WI

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
Lake Geneva, WI

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 / Average sunshine
Lake Geneva, WI

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).

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
Lake Geneva, WI

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
Lake Geneva, WI

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
Lake Geneva, WI

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
Lake Geneva, WI

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).