December weather forecast
Mayville, WI

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Weather in December

The first month of the winter, December, is still a freezing cold month in Mayville, Wisconsin, with an average temperature ranging between min 19.2°F (-7.1°C) and max 29.3°F (-1.5°C).

Temperature

Mayville's December weather features a mild decline in high-temperatures, reducing from a cold 42.1°F (5.6°C) in November to a subzero cold 29.3°F (-1.5°C). Mayville observes an average nighttime temperature of 19.2°F (-7.1°C) during December.

Humidity

In Mayville, the average relative humidity in December is 85%.

Rainfall

February and December are months with the least rain when the rain falls for 4.2 days and typically aggregates up to 0.83" (21mm) of rain.

Snowfall

Months with snowfall in Mayville are January through May, October through December. In Mayville, Wisconsin, in December, during 12.1 snowfall days, 2.2" (56mm) of snow is typically accumulated. In Mayville, during the entire year, snow falls for 54.7 days and aggregates up to 13.82" (351mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:07 am and sunset at 4:19 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:28 pm CST.

Sunshine

The average sunshine in December is 3.5h.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In Mayville, 29.3°F (-1.5°C) is the average high-temperature and 19.2°F (-7.1°C) is the average low-temperature during December.

What is the average humidity in December?

In December, the average relative humidity is 85%.

What is the driest month in Mayville?

February and December are months with the least rain when the rain falls for 4.2 days and typically aggregates up to 0.83" (21mm) of rain.

How many days does it rain in December?

In Mayville, during December, the rain falls for 4.2 days and regularly aggregates up to 0.83" (21mm) of precipitation.

How many days does it snow in December?

In Mayville, in December, snow falls for 12.1 days, with typically accumulated 2.2" (56mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

In Mayville, Wisconsin, the average day length in December is 9h and 1min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:07 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:28 pm CST.

How many hours of sunshine does Mayville have in December?

In December, the average sunshine duration is 3.5h.

What are the months with the lowest UV index?

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

What is the UV index intensity 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 unsafe 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
Mayville, WI

Average temperature in December - Mayville, WI
  • Average high temperature in December: 29.3°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 (22.6°F).

  • Average low temperature in December: 19.2°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in December
Mayville, WI

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

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Mayville, WI

Average wind speed in December - Mayville, WI
  • Average wind speed in December: 9.6mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in December
Mayville, WI

Average humidity in December - Mayville, WI
  • Average humidity in December: 85%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Mayville, WI

Average rainfall in December - Mayville, WI
  • Average rainfall in December: 0.83"

The wettest months (with the highest rainfall) are May and June (2.6").
The driest months (with the least rainfall) are February and December (0.83").

Average rainfall days in December
Mayville, WI

Average rainfall days in December - Mayville, WI
  • Average rainfall days in December: 4.2 days

The month with the highest number of rainy days is July (16.2 days).
The months with the least rainy days are January and February (3.1 days).

Average snowfall in December
Mayville, WI

Average snowfall in December - Mayville, WI
  • Average snowfall in December: 2.2"

The month with the highest snowfall is January (3.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Mayville, WI

Average snowfall days in December - Mayville, WI
  • Average snowfall days in December: 12.1 days

The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 3h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Mayville, WI

Average sunshine days in December - Mayville, WI
  • Average sunshine days in December: 16 days

The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is July (11.7 days).

Average UV index in December
Mayville, WI

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

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in December
Mayville, WI

Average cloud cover in December - Mayville, WI
  • Average cloud cover in December: 65

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 36).

Average visibility in December
Mayville, WI

Average visibility in December - Mayville, 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).

Mayville, Wisconsin, USA

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