December weather forecast
Wilton, WI

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Weather in December

December, the first month of the winter in Wilton, is still a freezing cold month, with temperature in the range of an average low of 16.7°F (-8.5°C) and an average high of 27.3°F (-2.6°C).

Temperature

With the beginning of December, the average high-temperature shows a decrease, transitioning from a cold 41°F (5°C) in November to a subzero cold 27.3°F (-2.6°C). Wilton witnesses an average low-temperature of 16.7°F (-8.5°C) throughout the month of December.

Humidity

The average relative humidity in December in Wilton, Wisconsin, is 87%.

Rainfall

In December, in Wilton, the rain falls for 3.5 days. Throughout December, 0.94" (24mm) of precipitation is accumulated. In Wilton, during the entire year, the rain falls for 112.6 days and collects up to 18.11" (460mm) of precipitation.

Snowfall

Months with snowfall in Wilton, Wisconsin, are January through May, October through December. In Wilton, during December, snow falls for 12.2 days and regularly aggregates up to 3.23" (82mm) of snow. Throughout the year, in Wilton, there are 58.3 snowfall days, and 16.02" (407mm) of snow is accumulated.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:16 am and sunset at 4:25 pm. On the last day of December, in Wilton, Wisconsin, sunrise is at 7:36 am and sunset at 4:34 pm CST.

Sunshine

In December, the average sunshine is 3.2h.

UV index

January, February, November 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 threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

How cold is it in Wilton in December?

An average high-temperature, in December, in Wilton, is 27.3°F (-2.6°C) and the average low-temperature is 16.7°F (-8.5°C).

What is the average humidity in December in Wilton?

In Wilton, Wisconsin, the average relative humidity in December is 87%.

How much does it rain in Wilton in December?

In Wilton, in December, it is raining for 3.5 days, with typically 0.94" (24mm) of accumulated precipitation.

How many days does it snow in December in Wilton?

In Wilton, Wisconsin, during December, snow falls for 12.2 days and regularly aggregates up to 3.23" (82mm) of snow.

What is the month with the shortest days in Wilton?

With an average of 9h and 0min of daylight, December has the shortest days of the year in Wilton, Wisconsin.

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

The average day length in December in Wilton, Wisconsin, is 8h and 59min.

When are sunrise and sunset in December in Wilton?

On the first day of December, sunrise is at 7:16 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:34 pm CST.

How many hours of sunshine does Wilton have in December?

The average sunshine duration in December is 3.2h.

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

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

What is the UV index reading in December in Wilton?

In December, the average daily maximum UV index in Wilton, Wisconsin, is 1. A UV Index of 2, and less, symbolizes 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
Wilton, WI

Average temperature in December - Wilton, WI
  • Average high temperature in December: 27.3°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (21.4°F).

  • Average low temperature in December: 16.7°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

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Average pressure in December
Wilton, WI

Average pressure in December - Wilton, 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 (29.9"Hg).

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Average wind speed in December
Wilton, WI

Average wind speed in December - Wilton, WI
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

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Average humidity in December
Wilton, WI

Average humidity in December - Wilton, WI
  • Average humidity in December: 87%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (77%).

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Average rainfall in December
Wilton, WI

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

The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.67").

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Average rainfall days in December
Wilton, WI

Average rainfall days in December - Wilton, WI
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is February (2.1 days).

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Average snowfall in December
Wilton, WI

Average snowfall in December - Wilton, WI
  • Average snowfall in December: 3.23"

The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Wilton, WI

Average snowfall days in December - Wilton, WI
  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Wilton, 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 1min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

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Average sunshine days in December
Wilton, WI

Average sunshine days in December - Wilton, WI
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (11.6 days).

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Average UV index in December
Wilton, WI

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

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Average cloud cover in December
Wilton, WI

Average cloud cover in December - Wilton, WI
  • Average cloud cover in December: 68

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
Wilton, WI

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

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

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Wilton, Wisconsin, USA

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