December weather forecast
Wisconsin Dells, WI

The hard and rocky surface of the Witches Gulch tourist attraction spot hidden within the Wisconsin Dells region
The hard and rocky surface of the Witches Gulch tourist attraction spot hidden within the Wisconsin Dells region

Weather in December

December, the first month of the winter in Wisconsin Dells, is also a subzero cold month, with an average temperature fluctuating between 28.8°F (-1.8°C) and 18.5°F (-7.5°C).

Temperature

In Wisconsin Dells, the average high-temperature in December drops from a cold 41.7°F (5.4°C) in November to a freezing cold 28.8°F (-1.8°C). In Wisconsin Dells, the average low-temperature is 18.5°F (-7.5°C).

Humidity

In December, the average relative humidity is 85%.

Rainfall

In Wisconsin Dells, it is raining for 4.2 days, with typically 0.43" (11mm) of accumulated precipitation. In Wisconsin Dells, Wisconsin, during the entire year, the rain falls for 94.1 days and collects up to 8.46" (215mm) of precipitation.

Snowfall

Months with snowfall in Wisconsin Dells are January through April, October through December. In December, it is snowing for 10.1 days. Throughout December, 1.22" (31mm) of snow is accumulated. Throughout the year, there are 43.9 snowfall days, and 6.02" (153mm) of snow is accumulated.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:12 am and sunset at 4:23 pm. On the last day of December, in Wisconsin Dells, sunrise is at 7:32 am and sunset at 4:31 pm CST.

Sunshine

The average sunshine in December is 3.7h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Wisconsin Dells. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 1 in December transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 temperature in December in Wisconsin Dells?

The average high-temperature, in December, in Wisconsin Dells, is 28.8°F (-1.8°C), while the average low-temperature is 18.5°F (-7.5°C).

What is the average humidity in December in Wisconsin Dells?

In December, the average relative humidity in Wisconsin Dells is 85%.

How much does it rain in Wisconsin Dells in December?

In Wisconsin Dells, Wisconsin, in December, it is raining for 4.2 days, with typically 0.43" (11mm) of accumulated precipitation.

How much does it snow in Wisconsin Dells in December?

In Wisconsin Dells, in December, during 10.1 snowfall days, 1.22" (31mm) of snow is typically accumulated.

What is the month with the shortest days in Wisconsin Dells?

With an average of 9h and 0min of daylight, December has the shortest days of the year in Wisconsin Dells, Wisconsin.

What is the average length of the day in December in Wisconsin Dells?

In Wisconsin Dells, Wisconsin, the average day length in December is 9h and 0min.

When is the sunrise / sunset in December in Wisconsin Dells?

On the first day of December in Wisconsin Dells, Wisconsin, sunrise is at 7:12 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:31 pm CST.

How many hours of sunshine does Wisconsin Dells have in December?

In December, the average sunshine duration in Wisconsin Dells, Wisconsin, is 3.7h.

What are the months with the lowest UV index in Wisconsin Dells?

The months with the lowest UV index in Wisconsin Dells are January, February, November and December, with an average maximum UV index of 1.

What is the UV index intensity in December in Wisconsin Dells?

In December, the average daily maximum UV index in Wisconsin Dells, Wisconsin, is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Wisconsin Dells, WI

Average temperature in December - Wisconsin Dells, WI
  • Average high temperature in December: 28.8°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in December: 18.5°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (10°F).

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Average pressure in December
Wisconsin Dells, WI

Average pressure in December - Wisconsin Dells, WI
  • Average pressure in December: 30.09"Hg

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Wisconsin Dells, WI

Average wind speed in December - Wisconsin Dells, WI
  • Average wind speed in December: 9.1mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in December
Wisconsin Dells, WI

Average humidity in December - Wisconsin Dells, WI
  • Average humidity in December: 85%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in December
Wisconsin Dells, WI

Average rainfall in December - Wisconsin Dells, WI
  • Average rainfall in December: 0.43"

The wettest month (with the highest rainfall) is June (1.18").
The driest month (with the least rainfall) is January (0.31").

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Average rainfall days in December
Wisconsin Dells, WI

Average rainfall days in December - Wisconsin Dells, WI
  • Average rainfall days in December: 4.2 days

The month with the highest number of rainy days is June (13.3 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in December
Wisconsin Dells, WI

Average snowfall in December - Wisconsin Dells, WI
  • Average snowfall in December: 1.22"

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Wisconsin Dells, WI

Average snowfall days in December - Wisconsin Dells, WI
  • Average snowfall days in December: 10.1 days

The month with the highest number of snowfall days is January (11.9 days).
The 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
Wisconsin Dells, WI

Average daylight in December / Average sunshine in December - Wisconsin Dells, WI
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 23min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 3h and 42min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in December
Wisconsin Dells, WI

Average sunshine days in December - Wisconsin Dells, WI
  • Average sunshine days in December: 21.4 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is June (14.1 days).

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Average UV index in December
Wisconsin Dells, WI

Average UV index in December - Wisconsin Dells, WI
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in December
Wisconsin Dells, WI

Average cloud cover in December - Wisconsin Dells, WI
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in December
Wisconsin Dells, WI

Average visibility in December - Wisconsin Dells, WI
  • Average visibility in December: 6mi

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).

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