December weather forecast
Weston, WI

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Weather in December

December, the first month of the winter in Weston, is also a subzero cold month, with an average temperature fluctuating between 15.4°F (-9.2°C) and 24.8°F (-4°C).

Temperature

December comes with a drop in the average high-temperature, falling from November's cold 38.3°F (3.5°C) to a freezing cold 24.8°F (-4°C). An average low-temperature of 15.4°F (-9.2°C) is recorded in the month of December.

Humidity

The average relative humidity in December is 89%.

Rainfall

In December, the rain falls for 4.6 days. Throughout December, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 103 rainfall days, and 11.02" (280mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Weston are January through May, October through December. In Weston, in December, snow falls for 12.7 days, with typically accumulated 1.85" (47mm) of snow. In Weston, during the entire year, snow falls for 68.7 days and aggregates up to 11.18" (284mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of December, sunrise is at 7:16 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:27 pm CST.

Sunshine

The average sunshine in December is 3.1h.

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 value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 1 transforms into these recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Weston in December?

During December, Weston experiences an average high-temperature of 24.8°F (-4°C) and a low-temperature of 15.4°F (-9.2°C).

What is the average humidity in December?

In December, the average relative humidity is 89%.

How many days does it rain in December?

In Weston, in December, during 4.6 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 12.7 days. Throughout December, 1.85" (47mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 8h and 54min of daylight, December has the shortest days of the year in Weston.

What is the average length of the day in December?

The average day length in December is 8h and 51min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:16 am and sunset at 4:18 pm. On the last day of the month, in Weston, sunrise is at 7:35 am and sunset at 4:27 pm CST.

How long on average sun shines in December?

In Weston, the average sunshine duration in December is 3.1h.

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.

How high is the UV index in December?

In Weston, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health risk 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
Weston, WI

Average temperature in December - Weston, WI
  • Average high temperature in December: 24.8°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (19.8°F).

  • Average low temperature in December: 15.4°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

Average pressure in December
Weston, WI

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

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

Average wind speed in December
Weston, WI

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

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

Average humidity in December
Weston, WI

Average humidity in December - Weston, WI
  • Average humidity in December: 89%

The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Weston, WI

Average rainfall in December - Weston, WI
  • Average rainfall in December: 0.59"

The wettest months (with the highest rainfall) are May and June (1.46").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in December
Weston, WI

Average rainfall days in December - Weston, WI
  • Average rainfall days in December: 4.6 days

The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in December
Weston, WI

Average snowfall in December - Weston, WI
  • Average snowfall in December: 1.85"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Weston, WI

Average snowfall days in December - Weston, WI
  • Average snowfall days in December: 12.7 days

The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • 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).

Average sunshine days in December
Weston, WI

Average sunshine days in December - Weston, WI
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is April (13.4 days).

Average UV index in December
Weston, WI

Average UV index in December - Weston, 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
Weston, WI

Average cloud cover in December - Weston, WI
  • Average cloud cover in December: 69

The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in December
Weston, WI

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

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

Weston, Wisconsin, USA

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