December weather forecast
Cumberland, WI

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Weather in December

December, the first month of the winter in Cumberland, is also a subzero cold month, with an average temperature fluctuating between 12.7°F (-10.7°C) and 23.4°F (-4.8°C).

Temperature

In Cumberland, the beginning of December is marked by a lowered average high-temperature, shifting from November's icy 37.6°F (3.1°C) to a freezing cold 23.4°F (-4.8°C). During the December nights, an average temperature of 12.7°F (-10.7°C) is observed.

Humidity

In December, the average relative humidity in Cumberland is 91%.

Rainfall

In December, the rain falls for 3.3 days. Throughout December, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 123 rainfall days, and 23.35" (593mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 14.5 days and accumulates 5.79" (147mm) of snow.

Daylight

December has the shortest days of the year in Cumberland, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 7:28 am and sunset at 4:26 pm. On the last day of December, sunrise is at 7:48 am and sunset at 4:34 pm CST.

Sunshine

In Cumberland, the average sunshine in December is 2.6h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Cumberland in December?

The high-temperature during December is 23.4°F (-4.8°C) and the low-temperature is 12.7°F (-10.7°C).

What is the average humidity in December?

In December, the average relative humidity in Cumberland is 91%.

How much does it rain in December?

In December, the rain falls for 3.3 days. Throughout December, 1.34" (34mm) of precipitation is accumulated.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 14.5 days and accumulates 5.79" (147mm) of snow.

How much does it snow in Cumberland in December?

In December, it is snowing for 14.5 days. Throughout December, 5.79" (147mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 48min of daylight.

What is the average length of the day in December?

The average day length in December in Cumberland is 8h and 46min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:28 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:34 pm CST.

How many hours of sunshine does Cumberland have in December?

The average sunshine duration in December is 2.6h.

When is the lowest UV index?

January, February 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 reading of 2, and below, represents a minimal hazard to health 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
Cumberland, WI

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

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (17.4°F).

  • Average low temperature in December: 12.7°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (4.6°F).

Average pressure in December
Cumberland, WI

Average pressure in December - Cumberland, 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 (29.88"Hg).

Average wind speed in December
Cumberland, WI

Average wind speed in December - Cumberland, WI
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in December
Cumberland, WI

Average humidity in December - Cumberland, WI
  • Average humidity in December: 91%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (76%).

Average rainfall in December
Cumberland, WI

Average rainfall in December - Cumberland, WI
  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in December
Cumberland, WI

Average rainfall days in December - Cumberland, WI
  • Average rainfall days in December: 3.3 days

The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (1.9 days).

Average snowfall in December
Cumberland, WI

Average snowfall in December - Cumberland, WI
  • Average snowfall in December: 5.79"

The month with the highest snowfall is December (5.79").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Cumberland, WI

Average snowfall days in December - Cumberland, WI
  • Average snowfall days in December: 14.5 days

The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Cumberland, WI
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in December: 2h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

Average sunshine days in December
Cumberland, WI

Average sunshine days in December - Cumberland, WI
  • Average sunshine days in December: 15.3 days

The months with the most sunshine days are October and November (15.7 days).
The month with the least sunshine days is June (10.5 days).

Average UV index in December
Cumberland, WI

Average UV index in December - Cumberland, 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 and December (UV index 1).

Average cloud cover in December
Cumberland, WI

Average cloud cover in December - Cumberland, WI
  • Average cloud cover in December: 72

The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in December
Cumberland, WI

Average visibility in December - Cumberland, WI
  • Average visibility in December: 4mi

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

Cumberland, Wisconsin, USA

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