December weather forecast
Cedarburg, WI

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Weather in December

December, the first month of the winter in Cedarburg, is still a cold month, with an average temperature ranging between min 23.7°F (-4.6°C) and max 32.2°F (0.1°C).

Temperature

The arrival of December corresponds with a reduction in the average high-temperature, down from November's frosty 43.7°F (6.5°C) to a cold 32.2°F (0.1°C). Cedarburg in December experiences a minor decline in temperature, with an average low of 23.7°F (-4.6°C) at night.

Humidity

In December, the average relative humidity is 82%.

Rainfall

The months with the least rainfall in Cedarburg are February and December Rain falls for 6.4 days and accumulates 0.94" (24mm) of rain.

Snowfall

January through April, October through December are months with snowfall in Cedarburg, Wisconsin. In Cedarburg, in December, snow falls for 10.1 days, with typically accumulated 2.01" (51mm) of snow. In Cedarburg, during the entire year, snow falls for 47.8 days and aggregates up to 11.57" (294mm) of snow.

Daylight

December has the shortest days of the year in Cedarburg, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:05 am and sunset at 4:17 pm. On the last day of December, in Cedarburg, sunrise is at 7:24 am and sunset at 4:26 pm CST.

Sunshine

The average sunshine in December is 3.9h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 1 translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Cedarburg?

The high-temperature in Cedarburg during December is 32.2°F (0.1°C) and the low-temperature is 23.7°F (-4.6°C).

What is the average humidity in December in Cedarburg?

In Cedarburg, the average relative humidity in December is 82%.

What is the driest month in Cedarburg?

The months with the least rainfall are February and December Rain falls for 6.4 days and accumulates 0.94" (24mm) of rain.

How much does it rain in Cedarburg in December?

In December, in Cedarburg, the rain falls for 6.4 days. Throughout December, 0.94" (24mm) of precipitation is accumulated.

How much does it snow in Cedarburg in December?

In Cedarburg, Wisconsin, in December, during 10.1 snowfall days, 2.01" (51mm) of snow is typically accumulated.

What is the month with the shortest days in Cedarburg?

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

How many hours of daylight does Cedarburg have in December?

In Cedarburg, the average day length in December is 9h and 2min.

When are sunrise and sunset in December in Cedarburg?

On the first day of December in Cedarburg, Wisconsin, sunrise is at 7:05 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:26 pm CST.

How many hours of sunshine does Cedarburg have in December?

In Cedarburg, Wisconsin, the average sunshine duration in December is 3.9h.

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

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

How high is the UV index in December in Cedarburg?

The average daily maximum UV index in December in Cedarburg is 1. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's 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
Cedarburg, WI

Average temperature in December - Cedarburg, WI
  • Average high temperature in December: 32.2°F

The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (25.9°F).

  • Average low temperature in December: 23.7°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

Average pressure in December
Cedarburg, WI

Average pressure in December - Cedarburg, WI
  • Average pressure in December: 30.08"Hg

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Cedarburg, WI

Average wind speed in December - Cedarburg, WI
  • Average wind speed in December: 11mph

The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

Average humidity in December
Cedarburg, WI

Average humidity in December - Cedarburg, WI
  • Average humidity in December: 82%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are October and November (76%).

Average rainfall in December
Cedarburg, WI

Average rainfall in December - Cedarburg, WI
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is July (2.8").
The driest months (with the least rainfall) are February and December (0.94").

Average rainfall days in December
Cedarburg, WI

Average rainfall days in December - Cedarburg, WI
  • Average rainfall days in December: 6.4 days

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in December
Cedarburg, WI

Average snowfall in December - Cedarburg, WI
  • Average snowfall in December: 2.01"

The month with the highest snowfall is January (2.76").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Cedarburg, WI

Average snowfall days in December - Cedarburg, WI
  • Average snowfall days in December: 10.1 days

The month with the highest number of snowfall days is January (12.2 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
Cedarburg, WI

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

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 0min).

  • Average sunshine in December: 3h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in December
Cedarburg, WI

Average sunshine days in December - Cedarburg, WI
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is December (16.8 days).
The month with the least sunshine days is July (11.9 days).

Average UV index in December
Cedarburg, WI

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

Average cloud cover in December
Cedarburg, WI

Average cloud cover in December - Cedarburg, WI
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in December
Cedarburg, WI

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

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

Cedarburg, Wisconsin, USA

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