December weather forecast
Fairfax, VT

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Weather in December

December, the first month of the winter in Fairfax, is also a subzero cold month, with temperature in the range of an average high of 30°F (-1.1°C) and an average low of 20.5°F (-6.4°C).

Temperature

In December, the average high-temperature goes from a wintry 41.5°F (5.3°C) in November to a freezing cold 30°F (-1.1°C). In Fairfax, an average low-temperature of 20.5°F (-6.4°C) is recorded during December nights.

Humidity

In Fairfax, the average relative humidity in December is 84%.

Rainfall

In December, the rain falls for 12 days. Throughout December, 2.17" (55mm) of precipitation is accumulated. In Fairfax, during the entire year, the rain falls for 172.5 days and collects up to 28.07" (713mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Fairfax, Vermont, in December, during 18.2 snowfall days, 7.2" (183mm) of snow is typically accumulated. Throughout the year, there are 92.6 snowfall days, and 43.98" (1117mm) of snow is accumulated.

Daylight

The month with the shortest days in Fairfax is December, with an average of 8h and 54min of daylight.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:13 pm. On the last day of December, in Fairfax, sunrise is at 7:28 am and sunset at 4:21 pm EST.

Sunshine

The average sunshine in December is 3.5h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Fairfax. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 1 in December translates into this advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

How cold is it in Fairfax in December?

The high-temperature, in December, in Fairfax, is 30°F (-1.1°C), while the low-temperature averages to 20.5°F (-6.4°C).

What is the average humidity in December in Fairfax?

The average relative humidity in December is 84%.

How much does it rain in Fairfax in December?

In Fairfax, during December, the rain falls for 12 days and regularly aggregates up to 2.17" (55mm) of precipitation.

How much does it snow in Fairfax in December?

In December, it is snowing for 18.2 days. Throughout December, 7.2" (183mm) of snow is accumulated.

What is the month with the shortest days in Fairfax?

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

How many hours of daylight does Fairfax have in December?

The average day length in December in Fairfax, Vermont, is 8h and 53min.

What time are sunrise and sunset in December in Fairfax?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:21 pm EST.

How long on average sun shines in December in Fairfax?

In Fairfax, the average sunshine duration in December is 3.5h.

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

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

What is the UV index reading in December in Fairfax?

In Fairfax, Vermont, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health risk 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
Fairfax, VT

Average temperature in December - Fairfax, VT
  • Average high temperature in December: 30°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in December: 20.5°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (12°F).

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Average pressure in December
Fairfax, VT

Average pressure in December - Fairfax, 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
Fairfax, VT

Average wind speed in December - Fairfax, VT
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in December
Fairfax, VT

Average humidity in December - Fairfax, VT
  • Average humidity in December: 84%

The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (76%).

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Average rainfall in December
Fairfax, VT

Average rainfall in December - Fairfax, VT
  • Average rainfall in December: 2.17"

The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is February (1.73").

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Average rainfall days in December
Fairfax, VT

Average rainfall days in December - Fairfax, VT
  • Average rainfall days in December: 12 days

The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is January (9 days).

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Average snowfall in December
Fairfax, VT

Average snowfall in December - Fairfax, VT
  • Average snowfall in December: 7.2"

The month with the highest snowfall is February (9.65").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Fairfax, VT

Average snowfall days in December - Fairfax, VT
  • Average snowfall days in December: 18.2 days

The month with the highest number of snowfall days is January (20.7 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
Fairfax, VT

Average daylight in December / Average sunshine in December - Fairfax, 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 3min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).

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Average sunshine days in December
Fairfax, VT

Average sunshine days in December - Fairfax, VT
  • Average sunshine days in December: 6.8 days

The month with the most sunshine days is September (15.2 days).
The month with the least sunshine days is February (6 days).

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Average UV index in December
Fairfax, VT

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

The months with the highest UV index are 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
Fairfax, VT

Average cloud cover in December - Fairfax, VT
  • Average cloud cover in December: 66

The month with the most cloud cover is February (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in December
Fairfax, VT

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

The months with the highest visibility are May, July and August (6mi).
The months with the lowest visibility are January, February and March (4mi).

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Fairfax, Vermont, USA

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