December weather forecast
Monroe, WI

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Weather in December

December, the first month of the winter in Monroe, is also a subzero cold month, with an average temperature ranging between max 31.3°F (-0.4°C) and min 21.2°F (-6°C).

Temperature

As November transitions to December, the average high-temperature falls from a chilly 43.7°F (6.5°C) to a subzero cold 31.3°F (-0.4°C). Throughout December, an average low-temperature of 21.2°F (-6°C) is expected.

Humidity

The average relative humidity in December in Monroe is 83%.

Rainfall

In Monroe, in December, during 7.6 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Monroe, during the entire year, the rain falls for 154.8 days and collects up to 31.18" (792mm) of precipitation.

Snowfall

Months with snowfall in Monroe, Wisconsin, are January through April, October through December. In Monroe, in December, during 12.5 snowfall days, 4.09" (104mm) of snow is typically accumulated. In Monroe, Wisconsin, during the entire year, snow falls for 59.7 days and aggregates up to 24.09" (612mm) of snow.

Daylight

December has the shortest days of the year in Monroe, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:26 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:35 pm CST.

Sunshine

In Monroe, the average sunshine in December is 3.9h.

UV index

The months with the lowest UV index in Monroe are January, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 1 during December translates into the following directions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Monroe in December?

During December, Monroe experiences an average high-temperature of 31.3°F (-0.4°C) and a low-temperature of 21.2°F (-6°C).

What is the average humidity in December in Monroe?

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

How many days does it rain in December in Monroe?

In Monroe, during December, the rain falls for 7.6 days and regularly aggregates up to 1.69" (43mm) of precipitation.

How many days does it snow in December in Monroe?

In Monroe, in December, during 12.5 snowfall days, 4.09" (104mm) of snow is typically accumulated.

What is the month with the shortest days in Monroe?

December has the shortest days of the year in Monroe, Wisconsin, with an average of 9h and 6min of daylight.

How many hours of daylight does Monroe have in December?

The average day length in December in Monroe, Wisconsin, is 9h and 7min.

What time are sunrise and sunset in December in Monroe?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:26 pm. On the last day of the month, in Monroe, sunrise is at 7:28 am and sunset at 4:35 pm CST.

How many hours of sunshine does Monroe have in December?

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

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

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

What is the UV index reading in December in Monroe?

In Monroe, the average daily maximum UV index in December is 1. A UV Index estimate 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
Monroe, WI

Average temperature in December - Monroe, WI
  • Average high temperature in December: 31.3°F

The warmest month (with the highest average high temperature) is July (79.3°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 (62.4°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

Average pressure in December
Monroe, WI

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Monroe, WI

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

The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in December
Monroe, WI

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

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

Average rainfall in December
Monroe, WI

Average rainfall in December - Monroe, WI
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is June (4.61").
The driest month (with the least rainfall) is January (1.5").

Average rainfall days in December
Monroe, WI

Average rainfall days in December - Monroe, WI
  • Average rainfall days in December: 7.6 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in December
Monroe, WI

Average snowfall in December - Monroe, WI
  • Average snowfall in December: 4.09"

The month with the highest snowfall is February (6.02").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Monroe, WI

Average snowfall days in December - Monroe, WI
  • Average snowfall days in December: 12.5 days

The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Monroe, 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 5min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).

Average sunshine days in December
Monroe, WI

Average sunshine days in December - Monroe, WI
  • Average sunshine days in December: 13.9 days

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is June (8.6 days).

Average UV index in December
Monroe, WI

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

Average cloud cover in December
Monroe, WI

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

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is September (Cloud cover 34).

Average visibility in December
Monroe, WI

Average visibility in December - Monroe, WI
  • Average visibility in December: 5mi

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

Monroe, Wisconsin, USA

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