December weather forecast
Rupert, VT

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Weather in December

The first month of the winter, December, is also a wintry month in Rupert, Vermont, with temperature in the range of an average high of 32.7°F (0.4°C) and an average low of 23°F (-5°C).

Temperature

The arrival of December corresponds with a temperature reduction, down from November's chilly 43.7°F (6.5°C) to a cold 32.7°F (0.4°C). During December, Rupert records an average temperature of 23°F (-5°C) at night.

Humidity

The average relative humidity in December is 81%.

Rainfall

In Rupert, during December, the rain falls for 11.9 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Rupert, during the entire year, the rain falls for 159.1 days and collects up to 29.69" (754mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Rupert, during December, snow falls for 11.5 days and regularly aggregates up to 6.18" (157mm) of snow. Throughout the year, there are 64.7 snowfall days, and 36.81" (935mm) of snow is accumulated.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year in Rupert.
On the first day of December in Rupert, sunrise is at 7:05 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:27 pm EST.

Sunshine

In December, the average sunshine in Rupert is 4.3h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Rupert. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the maximum UV index of 1 translates into these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

How cold is it in Rupert in December?

The high-temperature, in December, in Rupert, is 32.7°F (0.4°C), while the low-temperature averages to 23°F (-5°C).

What is the average humidity in December in Rupert?

In December, the average relative humidity in Rupert is 81%.

How many days does it rain in December in Rupert?

In Rupert, Vermont, during December, the rain falls for 11.9 days and regularly aggregates up to 2.64" (67mm) of precipitation.

How many days does it snow in December in Rupert?

In Rupert, Vermont, in December, during 11.5 snowfall days, 6.18" (157mm) of snow is typically accumulated.

What is the month with the shortest days in Rupert?

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

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

The average day length in December in Rupert is 9h and 2min.

When are sunrise and sunset in December in Rupert?

On the first day of December in Rupert, Vermont, sunrise is at 7:05 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:27 pm EST.

How many hours of sunshine does Rupert have in December?

In December, the average sunshine duration in Rupert, Vermont, is 4.3h.

What is the month with the lowest UV index in Rupert?

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

How high is the UV index in December in Rupert?

The average daily maximum UV index in December in Rupert, Vermont, is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from 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
Rupert, VT

Average temperature in December - Rupert, VT
  • Average high temperature in December: 32.7°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in December: 23°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 (15.1°F).

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Average pressure in December
Rupert, VT

Average pressure in December - Rupert, VT
  • Average pressure in December: 30.05"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Rupert, VT

Average wind speed in December - Rupert, VT
  • Average wind speed in December: 6.7mph

The windiest months (with the highest average wind speed) are January and April (7.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Rupert, VT

Average humidity in December - Rupert, VT
  • Average humidity in December: 81%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in December
Rupert, VT

Average rainfall in December - Rupert, VT
  • Average rainfall in December: 2.64"

The wettest month (with the highest rainfall) is June (2.91").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in December
Rupert, VT

Average rainfall days in December - Rupert, VT
  • Average rainfall days in December: 11.9 days

The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is February (7.9 days).

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Average snowfall in December
Rupert, VT

Average snowfall in December - Rupert, VT
  • Average snowfall in December: 6.18"

The month with the highest snowfall is February (10.59").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Rupert, VT

Average snowfall days in December - Rupert, VT
  • Average snowfall days in December: 11.5 days

The month with the highest number of snowfall days is January (16.3 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
Rupert, VT

Average daylight in December / Average sunshine in December - Rupert, VT
  • 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: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

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Average sunshine days in December
Rupert, VT

Average sunshine days in December - Rupert, VT
  • Average sunshine days in December: 13.4 days

The month with the most sunshine days is September (16.7 days).
The months with the least sunshine days are February and April (10.8 days).

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Average UV index in December
Rupert, VT

Average UV index in December - Rupert, VT
  • 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 and December (UV index 1).

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Average cloud cover in December
Rupert, VT

Average cloud cover in December - Rupert, VT
  • Average cloud cover in December: 55

The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July, August and September (Cloud cover 34).

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Average visibility in December
Rupert, VT

Average visibility in December - Rupert, VT
  • Average visibility in December: 5mi

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

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Rupert, Vermont, USA

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