December weather forecast
Baraboo, WI

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Weather in December

The weather in December in Baraboo fully embraces winter, with temperatures falling further to record an average high of 28.9°F (-1.7°C) as the city dives into the heart of the cold season. The snowfall increases to 0.71" (18mm), marking the imminent onset of winter and creating a beautiful snowy landscape. The weather takes a stark turn to colder days with the city enveloped in white. December sees the end of the year and it culminates in festive white Christmas days, a sight to behold in Baraboo. Conclusively, snow becomes an integral part of the city's winter charm.

Temperature

The shift from November to December involves a decrease in the average high-temperature, from a cold 42.1°F (5.6°C) to a subzero cold 28.9°F (-1.7°C). In the month of December, the average low-temperature in Baraboo usually rests at 18.9°F (-7.3°C).

Humidity

In December, the average relative humidity is 85%.

Rainfall

In Baraboo, in December, it is raining for 3.6 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, there are 88.4 rainfall days, and 7.4" (188mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Baraboo, in December, during 8.9 snowfall days, 0.71" (18mm) of snow is typically accumulated. Throughout the year, there are 40 snowfall days, and 4.76" (121mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 0min of daylight.
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, sunrise is at 7:31 am and sunset at 4:32 pm CST.

Sunshine

In Baraboo, the average sunshine in December is 3.7h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 1 in December interprets into the following advice:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In Baraboo, 28.9°F (-1.7°C) is the average high-temperature and 18.9°F (-7.3°C) is the average low-temperature during December.

What is the average humidity in December?

The average relative humidity in December is 85%.

How many days does it rain in December?

In Baraboo, in December, it is raining for 3.6 days, with typically 0.31" (8mm) of accumulated precipitation.

How much does it snow in December?

In Baraboo, in December, snow falls for 8.9 days, with typically accumulated 0.71" (18mm) of snow.

What is the month with the shortest days in Baraboo?

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

What is the average length of the day in December in Baraboo?

In December, the average day length is 9h and 1min.

When is the sunrise / sunset in December in Baraboo?

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

How many hours of sunshine does Baraboo have in December?

In December, the average sunshine duration is 3.7h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
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
Baraboo, WI

Average temperature in December - Baraboo, WI
  • Average high temperature in December: 28.9°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in December: 18.9°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (10°F).

Average pressure in December
Baraboo, WI

Average pressure in December - Baraboo, 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).

Average wind speed in December
Baraboo, WI

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

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in December
Baraboo, WI

Average humidity in December - Baraboo, WI
  • Average humidity in December: 85%

The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are April and October (77%).

Average rainfall in December
Baraboo, WI

Average rainfall in December - Baraboo, WI
  • Average rainfall in December: 0.31"

The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the least rainfall) is January (0.28").

Average rainfall days in December
Baraboo, WI

Average rainfall days in December - Baraboo, WI
  • Average rainfall days in December: 3.6 days

The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is February (2.2 days).

Average snowfall in December
Baraboo, WI

Average snowfall in December - Baraboo, WI
  • Average snowfall in December: 0.71"

The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Baraboo, WI

Average snowfall days in December - Baraboo, WI
  • Average snowfall days in December: 8.9 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Baraboo, WI

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 3h and 4min

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).

Average sunshine days in December
Baraboo, WI

Average sunshine days in December - Baraboo, WI
  • Average sunshine days in December: 23 days

The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is June (13.8 days).

Average UV index in December
Baraboo, WI

Average UV index in December - Baraboo, WI
  • Average UV index in December: 1

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 December
Baraboo, WI

Average cloud cover in December - Baraboo, WI
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Baraboo, WI

Average visibility in December - Baraboo, 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).

Baraboo, Wisconsin, USA

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