December weather forecast
Tunnel City, WI

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Weather in December

The first month of the winter, December, is also a subzero cold month in Tunnel City, Wisconsin, with an average temperature ranging between max 27.3°F (-2.6°C) and min 16.7°F (-8.5°C).

Temperature

The start of December signals a decrease in the average high-temperature, transitioning from an icy 41°F (5°C) in November to a freezing cold 27.3°F (-2.6°C). Tunnel City observes an average nighttime low-temperature of 16.7°F (-8.5°C) during the month of December.

Humidity

The average relative humidity in December in Tunnel City is 87%.

Rainfall

In Tunnel City, Wisconsin, during December, the rain falls for 3.5 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Tunnel City, during the entire year, the rain falls for 112.6 days and collects up to 18.11" (460mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Tunnel City, in December, during 12.2 snowfall days, 3.23" (82mm) of snow is typically accumulated. Throughout the year, there are 58.3 snowfall days, and 16.02" (407mm) of snow is accumulated.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year in Tunnel City, Wisconsin.
On the first day of December, sunrise is at 7:17 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:34 pm CST.

Sunshine

In December, the average sunshine in Tunnel City is 3.2h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 1 during December leads to these advisories:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Tunnel City?

In Tunnel City, 27.3°F (-2.6°C) is the average high-temperature and 16.7°F (-8.5°C) is the average low-temperature during December.

What is the average humidity in December in Tunnel City?

The average relative humidity in December is 87%.

How many days does it rain in December in Tunnel City?

In Tunnel City, in December, it is raining for 3.5 days, with typically 0.94" (24mm) of accumulated precipitation.

How many days does it snow in December in Tunnel City?

In December, it is snowing for 12.2 days. Throughout December, 3.23" (82mm) of snow is accumulated.

What is the month with the shortest days in Tunnel City?

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

What is the average length of the day in December in Tunnel City?

In December, the average day length in Tunnel City, Wisconsin, is 8h and 58min.

When are sunrise and sunset in December in Tunnel City?

On the first day of December in Tunnel City, sunrise is at 7:17 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:34 pm CST.

How many hours of sunshine does Tunnel City have in December?

In December, the average sunshine duration in Tunnel City, Wisconsin, is 3.2h.

What is the month with the lowest UV index in Tunnel City?

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

What is the UV index intensity in December in Tunnel City?

In December, the average daily maximum UV index in Tunnel City is 1. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to 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
Tunnel City, WI

Average temperature in December - Tunnel City, WI
  • Average high temperature in December: 27.3°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (21.4°F).

  • Average low temperature in December: 16.7°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

Average pressure in December
Tunnel City, WI

Average pressure in December - Tunnel City, WI
  • Average pressure in December: 30.1"Hg

The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
Tunnel City, WI

Average wind speed in December - Tunnel City, WI
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

Average humidity in December
Tunnel City, WI

Average humidity in December - Tunnel City, WI
  • Average humidity in December: 87%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (77%).

Average rainfall in December
Tunnel City, WI

Average rainfall in December - Tunnel City, WI
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.67").

Average rainfall days in December
Tunnel City, WI

Average rainfall days in December - Tunnel City, WI
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is February (2.1 days).

Average snowfall in December
Tunnel City, WI

Average snowfall in December - Tunnel City, WI
  • Average snowfall in December: 3.23"

The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Tunnel City, WI

Average snowfall days in December - Tunnel City, WI
  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Tunnel City, WI

Average daylight in December / Average sunshine in December - Tunnel City, 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 1min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in December
Tunnel City, WI

Average sunshine days in December - Tunnel City, WI
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (11.6 days).

Average UV index in December
Tunnel City, WI

Average UV index in December - Tunnel City, 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).

Average cloud cover in December
Tunnel City, WI

Average cloud cover in December - Tunnel City, WI
  • Average cloud cover in December: 68

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Tunnel City, WI

Average visibility in December - Tunnel City, WI
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).

Tunnel City, Wisconsin, USA

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