December weather forecast
Waterbury, VT

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Weather in December

The weather in December brings back the familiar frigid touch in Waterbury. Compared to November, the weather veers toward colder days and nights, ushering in the winter season. The average snowfall of 8.23" (209mm) makes December a winter wonderland. Amidst the festive season, the city takes on a serene beauty under the soft blanket of snow. While the chill is noticeable, the lively spirit of Waterbury persists throughout December.

Temperature

As November transitions into December, Waterbury sees a drop in the average high-temperature, transitioning from a wintry 40.5°F (4.7°C) to a freezing cold 28.8°F (-1.8°C). Waterbury records an average temperature drop to 18.9°F (-7.3°C) in December.

Humidity

The average relative humidity in December is 86%.

Rainfall

In Waterbury, during December, the rain falls for 11.5 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Waterbury, Vermont, during the entire year, the rain falls for 174.1 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Waterbury, in December, during 19.6 snowfall days, 8.23" (209mm) of snow is typically accumulated. Throughout the year, in Waterbury, there are 100 snowfall days, and 52.87" (1343mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of the month, sunrise is at 7:07 am and sunset at 4:13 pm. On the last day of December, in Waterbury, sunrise is at 7:26 am and sunset at 4:21 pm EST.

Sunshine

In December, the average sunshine in Waterbury is 3h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

How cold is it in Waterbury in December?

In Waterbury, in December, the average high-temperature is 28.8°F (-1.8°C), and the average low-temperature is 18.9°F (-7.3°C).

What is the average humidity in December in Waterbury?

In December, the average relative humidity in Waterbury is 86%.

How many days does it rain in December in Waterbury?

In Waterbury, in December, during 11.5 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

How many days does it snow in December in Waterbury?

In Waterbury, Vermont, during December, snow falls for 19.6 days and regularly aggregates up to 8.23" (209mm) of snow.

What is the month with the shortest days in Waterbury?

The month with the shortest days in Waterbury, Vermont, is December, with an average of 8h and 54min of daylight.

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

In December, the average day length in Waterbury, Vermont, is 8h and 55min.

What time are sunrise and sunset in December in Waterbury?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:21 pm EST.

How many hours of sunshine does Waterbury have in December?

The average sunshine duration in December in Waterbury is 3h.

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

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

What is the UV index reading in December in Waterbury?

In December, the average daily maximum UV index in Waterbury is 1. A UV Index reading of 2, and below, represents a low health threat 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
Waterbury, VT

Average temperature in December - Waterbury, VT
  • Average high temperature in December: 28.8°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in December: 18.9°F

The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in December
Waterbury, VT

Average pressure in December - Waterbury, VT
  • Average pressure in December: 30.04"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Waterbury, VT

Average wind speed in December - Waterbury, VT
  • Average wind speed in December: 6.5mph

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

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Average humidity in December
Waterbury, VT

Average humidity in December - Waterbury, VT
  • Average humidity in December: 86%

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

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Average rainfall in December
Waterbury, VT

Average rainfall in December - Waterbury, VT
  • Average rainfall in December: 2.44"

The wettest month (with the highest rainfall) is June (3.31").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in December
Waterbury, VT

Average rainfall days in December - Waterbury, VT
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is June (19.1 days).
The month with the least rainy days is January (7.7 days).

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Average snowfall in December
Waterbury, VT

Average snowfall in December - Waterbury, VT
  • Average snowfall in December: 8.23"

The month with the highest snowfall is February (11.85").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Waterbury, VT

Average snowfall days in December - Waterbury, VT
  • Average snowfall days in December: 19.6 days

The month with the highest number of snowfall days is January (21.8 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
Waterbury, VT

Average daylight in December / Average sunshine in December - Waterbury, VT
  • 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 0min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).

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Average sunshine days in December
Waterbury, VT

Average sunshine days in December - Waterbury, VT
  • Average sunshine days in December: 6.4 days

The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (4.8 days).

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Average UV index in December
Waterbury, VT

Average UV index in December - Waterbury, VT
  • Average UV index in December: 1

The months with the highest UV index are June and July (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
Waterbury, VT

Average cloud cover in December - Waterbury, VT
  • Average cloud cover in December: 71

The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).

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Average visibility in December
Waterbury, VT

Average visibility in December - Waterbury, VT
  • Average visibility in December: 4mi

The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).

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Waterbury, Vermont, USA

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