December weather forecast
Shell Lake, WI

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Weather in December

The first month of the winter, December, is also a subzero cold month in Shell Lake, Wisconsin, with an average temperature fluctuating between 12.2°F (-11°C) and 23.4°F (-4.8°C).

Temperature

The beginning of December marks a decrease in the average high-temperature, transitioning from an icy 37.6°F (3.1°C) in November to a subzero cold 23.4°F (-4.8°C). Shell Lake's temperature lowers to a mean of 12.2°F (-11°C) during the nights in December.

Humidity

In December, the average relative humidity in Shell Lake is 89%.

Rainfall

In Shell Lake, in December, it is raining for 3.5 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 118.5 rainfall days, and 21.1" (536mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Shell Lake are January through May, October through December. The month with the most snowfall in Shell Lake is December, when snow falls for 14 days and typically aggregates up to 6.42" (163mm) of snow.

Daylight

With an average of 8h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:28 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:48 am and sunset at 4:33 pm CST.

Sunshine

The average sunshine in December in Shell Lake is 2.8h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Shell Lake. 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 maximum daily UV index of 1 in December converts into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of 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 Shell Lake?

December temperatures in Shell Lake, Wisconsin, vary between a high-temperature of 23.4°F (-4.8°C) and a low-temperature of 12.2°F (-11°C).

What is the average humidity in December in Shell Lake?

In Shell Lake, the average relative humidity in December is 89%.

How much does it rain in Shell Lake in December?

In Shell Lake, Wisconsin, during December, the rain falls for 3.5 days and regularly aggregates up to 1.18" (30mm) of precipitation.

What is the snowiest month in Shell Lake?

December is the month with the most snowfall. Snow falls for 14 days and accumulates 6.42" (163mm) of snow.

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

In Shell Lake, in December, snow falls for 14 days, with typically accumulated 6.42" (163mm) of snow.

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

The month with the shortest days in Shell Lake is December, with an average of 8h and 42min of daylight.

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

The average day length in December in Shell Lake is 8h and 45min.

When is the sunrise / sunset in December in Shell Lake?

In December, on the first day of the month, sunrise is at 7:28 am and sunset at 4:25 pm. On the last day of the month, in Shell Lake, Wisconsin, sunrise is at 7:48 am and sunset at 4:33 pm CST.

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

The average sunshine duration in December is 2.8h.

When is the lowest UV index in Shell Lake?

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

What is the UV index intensity in December in Shell Lake?

The average daily maximum UV index in December in Shell Lake is 1. A UV Index of 2, and less, symbolizes a low health threat from 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
Shell Lake, WI

Average temperature in December - Shell Lake, WI
  • Average high temperature in December: 23.4°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (17.4°F).

  • Average low temperature in December: 12.2°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).

Average pressure in December
Shell Lake, WI

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

The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Shell Lake, WI

Average wind speed in December - Shell Lake, WI
  • Average wind speed in December: 8.1mph

The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in December
Shell Lake, WI

Average humidity in December - Shell Lake, WI
  • Average humidity in December: 89%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (73%).

Average rainfall in December
Shell Lake, WI

Average rainfall in December - Shell Lake, WI
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in December
Shell Lake, WI

Average rainfall days in December - Shell Lake, WI
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.4 days).

Average snowfall in December
Shell Lake, WI

Average snowfall in December - Shell Lake, WI
  • Average snowfall in December: 6.42"

The month with the highest snowfall is December (6.42").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Shell Lake, WI

Average snowfall days in December - Shell Lake, WI
  • Average snowfall days in December: 14 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
Shell Lake, WI

Average daylight in December / Average sunshine in December - Shell Lake, WI
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

Average sunshine days in December
Shell Lake, WI

Average sunshine days in December - Shell Lake, WI
  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is December (16.9 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in December
Shell Lake, WI

Average UV index in December - Shell Lake, 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, November and December (UV index 1).

Average cloud cover in December
Shell Lake, WI

Average cloud cover in December - Shell Lake, WI
  • Average cloud cover in December: 71

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December
Shell Lake, WI

Average visibility in December - Shell Lake, WI
  • Average visibility in December: 5mi

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

Shell Lake, Wisconsin, USA

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