December weather forecast
Lake Geneva, WI

Weather in December

December, the first month of the winter, in Lake Geneva, is also a subzero cold month, with average temperature varying between 31.8°F (-0.1°C) and 21.7°F (-5.7°C).

Temperature

In December, the average high-temperature drops, from a chilly 43.7°F (6.5°C) in November, to a freezing cold 31.8°F (-0.1°C). In December, the average low-temperature is 21.7°F (-5.7°C).

Humidity

In Lake Geneva, the average relative humidity is 83%.

Rainfall

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

Snowfall

Months with snowfall are January through May, October through December. In Lake Geneva, Wisconsin, during December, snow falls for 9.3 days and regularly aggregates up to 2.83" (72mm) of snow. In Lake Geneva, during the entire year, snow falls for 44 days, and aggregates up to 17.36" (441mm) of snow.

Daylight

With an average of 9.1h of daylight, December has the shortest days of the year.

Sunshine

In Lake Geneva, the average sunshine is 3.8h.

UV index

Months with the lowest UV index in Lake Geneva are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 1 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in December in Lake Geneva?

The average relative humidity in December in Lake Geneva is 83%.

What is the driest month in Lake Geneva?

The month with the least rainfall is December when the rain falls for 5.7 days and typically collects 1.14" (29mm) of precipitation.

How much does it rain in Lake Geneva in December?

In Lake Geneva, in December, it is raining for 5.7 days, with typically 1.14" (29mm) of accumulated precipitation.

How many days does it snow in December in Lake Geneva?

In Lake Geneva, Wisconsin, in December, snow falls for 9.3 days, with typically accumulated 2.83" (72mm) of snow.

What is the month with the shortest days in Lake Geneva?

The month with the shortest days in Lake Geneva, Wisconsin, is December, with an average of 9.1h of daylight.

How many hours of daylight does Lake Geneva have in December?

In December, the average length of the day in Lake Geneva, Wisconsin, is 9.1h.

How long on average sun shines in December in Lake Geneva?

In Lake Geneva, the average sunshine in December is 3.8h.

When is the lowest UV index in Lake Geneva?

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

What is the UV index reading in December in Lake Geneva?

The average daily maximum UV index in December in Lake Geneva is 1. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays.

Average temperature in December
Lake Geneva, WI

Average temperature in December - Lake Geneva, WI
  • Average high temperature in December: 31.8°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 December: 21.7°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).

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Average pressure in December
Lake Geneva, WI

Average pressure in December - Lake Geneva, WI
  • Average pressure in December: 30.09"

Months with the highest atmospheric pressure are January and February (30.1").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in December
Lake Geneva, WI

Average wind speed in December - Lake Geneva, WI
  • Average wind speed in December: 9.2mph

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).

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Average humidity in December
Lake Geneva, WI

Average humidity in December - Lake Geneva, WI
  • Average humidity in December: 83%

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

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Average rainfall in December
Lake Geneva, WI

Average rainfall in December - Lake Geneva, WI
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is December (1.14").

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Average rainfall days in December
Lake Geneva, WI

Average rainfall days in December - Lake Geneva, WI
  • Average rainfall days in December: 5.7 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).

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Average snowfall in December
Lake Geneva, WI

Average snowfall in December - Lake Geneva, WI
  • Average snowfall in December: 2.83"

The month with the highest snowfall is January (4.69").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Lake Geneva, WI

Average snowfall days in December - Lake Geneva, WI
  • Average snowfall days in December: 9.3 days

The month with the highest number of snowfall days is January (11.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Lake Geneva, WI

Average daylight in December / Average sunshine in December - Lake Geneva, WI
  • Average daylight in December: 9.1h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in December: 3.8h

Months with the most sunshine are July and August (Average sunshine: 9.7h).
The month with the least sunshine is January (Average sunshine: 3.5h).

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Average sunshine days in December
Lake Geneva, WI

Average sunshine days in December - Lake Geneva, WI
  • Average sunshine days in December: 18 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).

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Average UV index in December
Lake Geneva, WI

Average UV index in December - Lake Geneva, WI
  • Average UV index in December: 1

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Lake Geneva, WI

Average cloud cover in December - Lake Geneva, WI
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 64).
Months with the least cloud cover are August and September (Cloud cover 34).

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Average visibility in December
Lake Geneva, WI

Average visibility in December - Lake Geneva, WI
  • Average visibility in December: 6mi

Months with the highest visibility are March, April, May, June, October, November and December (6mi).
Months with the lowest visibility are January, February, July, August and September (5mi).

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