December weather forecast
Wales, WI

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Weather in December

The first month of the winter, December, is also a subzero cold month in Wales, Wisconsin, with an average temperature ranging between max 30.9°F (-0.6°C) and min 21.2°F (-6°C).

Temperature

The shift from November to December involves a decrease in the average high-temperature, dropping from a frosty 43.3°F (6.3°C) to a subzero cold 30.9°F (-0.6°C). December nights experience a consistent temperature drop to a still freezing cold 21.2°F (-6°C).

Humidity

In Wales, Wisconsin, the average relative humidity in December is 83%.

Rainfall

December is the month with the least rainfall. Rain falls for 5.7 days and accumulates 0.75" (19mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Wales, in December, snow falls for 10.5 days, with typically accumulated 1.69" (43mm) of snow. Throughout the year, in Wales, Wisconsin, there are 48.5 snowfall days, and 11.02" (280mm) of snow is accumulated.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:05 am and sunset at 4:19 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:28 pm CST.

Sunshine

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

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 1 during December leads to these advisories:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Wales?

The high-temperature, in December, in Wales, is 30.9°F (-0.6°C), while the low-temperature averages to 21.2°F (-6°C).

What is the average humidity in December in Wales?

In December, the average relative humidity is 83%.

What is the driest month in Wales?

December is the month with the least rainfall. Rain falls for 5.7 days and accumulates 0.75" (19mm) of precipitation.

How much does it rain in Wales in December?

In Wales, during December, the rain falls for 5.7 days and regularly aggregates up to 0.75" (19mm) of precipitation.

How many days does it snow in December in Wales?

In Wales, Wisconsin, in December, snow falls for 10.5 days, with typically accumulated 1.69" (43mm) of snow.

What is the month with the shortest days in Wales?

The month with the shortest days in Wales, Wisconsin, is December, with an average of 9h and 6min of daylight.

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

In Wales, Wisconsin, the average day length in December is 9h and 4min.

When are sunrise and sunset in December in Wales?

On the first day of December in Wales, Wisconsin, sunrise is at 7:05 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:28 pm CST.

How long on average sun shines in December in Wales?

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

What are the months with the lowest UV index in Wales?

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

What is the UV index reading in December in Wales?

The average daily maximum UV index in December in Wales, Wisconsin, is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Wales, WI

Average temperature in December - Wales, WI
  • Average high temperature in December: 30.9°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (24.6°F).

  • Average low temperature in December: 21.2°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 (13.1°F).

Average pressure in December
Wales, WI

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

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

Average wind speed in December
Wales, WI

Average wind speed in December - Wales, WI
  • Average wind speed in December: 9.5mph

The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in December
Wales, WI

Average humidity in December - Wales, WI
  • Average humidity in December: 83%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Wales, WI

Average rainfall in December - Wales, WI
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is July (2.52").
The driest month (with the least rainfall) is December (0.75").

Average rainfall days in December
Wales, WI

Average rainfall days in December - Wales, WI
  • Average rainfall days in December: 5.7 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in December
Wales, WI

Average snowfall in December - Wales, WI
  • Average snowfall in December: 1.69"

The month with the highest snowfall is January (2.99").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Wales, WI

Average snowfall days in December - Wales, WI
  • Average snowfall days in December: 10.5 days

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Wales, WI
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 3h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in December
Wales, WI

Average sunshine days in December - Wales, WI
  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in December
Wales, WI

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

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

Average cloud cover in December
Wales, WI

Average cloud cover in December - Wales, WI
  • Average cloud cover in December: 62

The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are August and September (Cloud cover 32).

Average visibility in December
Wales, WI

Average visibility in December - Wales, WI
  • Average visibility in December: 6mi

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

Wales, Wisconsin, USA

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