December weather forecast
Avon, CT

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Weather in December

The first month of the winter, December, is still a cold month in Avon, Connecticut, with temperature in the range of an average low of 26.8°F (-2.9°C) and an average high of 37.6°F (3.1°C).

Temperature

Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a frosty 48.2°F (9°C) to a wintry 37.6°F (3.1°C). In December, the average low-temperature records at a freezing cold 26.8°F (-2.9°C) during the nights.

Humidity

In Avon, Connecticut, the average relative humidity in December is 79%.

Rainfall

December is the month with the most rainfall. Rain falls for 10.5 days and accumulates 3.43" (87mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Avon, in December, during 6.1 snowfall days, 3.54" (90mm) of snow is typically accumulated. In Avon, during the entire year, snow falls for 33.1 days and aggregates up to 18.39" (467mm) of snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:59 am and sunset at 4:21 pm. On the last day of December, in Avon, sunrise is at 7:18 am and sunset at 4:30 pm EST.

Sunshine

In December, the average sunshine is 4.7h.

UV index

The months with the lowest UV index in Avon are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the UV index of 2 transforms into the following advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. 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. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

How cold does it get in Avon in December?

An average high-temperature, in December, in Avon, is 37.6°F (3.1°C) and the average low-temperature is 26.8°F (-2.9°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in December in Avon?

The average relative humidity in December in Avon, Connecticut, is 79%.

What is the wettest month in Avon?

The month with the most rainfall in Avon, Connecticut, is December, when the rain falls for 10.5 days and typically aggregates up to 3.43" (87mm) of precipitation.

How many days does it rain in December in Avon?

In December, in Avon, Connecticut, the rain falls for 10.5 days. Throughout December, 3.43" (87mm) of precipitation is accumulated.

How much does it snow in Avon in December?

In Avon, in December, snow falls for 6.1 days, with typically accumulated 3.54" (90mm) of snow.

What is the month with the shortest days in Avon?

With an average of 9h and 12min of daylight, December has the shortest days of the year in Avon, Connecticut.

How many hours of daylight does Avon have in December?

In December, the average day length in Avon, Connecticut, is 9h and 12min.

What time are sunrise and sunset in December in Avon?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:21 pm. On the last day of the month, in Avon, Connecticut, sunrise is at 7:18 am and sunset at 4:30 pm EST.

How many hours of sunshine does Avon have in December?

In December, the average sunshine duration in Avon is 4.7h.

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

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Avon.

What is the UV index reading in December in Avon?

In December, the average daily maximum UV index in Avon, Connecticut, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to the Sun's UV radiation.
Average high temperature
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
Avon, CT

Average temperature in December - Avon, CT
  • Average high temperature in December: 37.6°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in December: 26.8°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

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Average pressure in December
Avon, CT

Average pressure in December - Avon, CT
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Avon, CT

Average wind speed in December - Avon, CT
  • Average wind speed in December: 7.8mph

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in December
Avon, CT

Average humidity in December - Avon, CT
  • Average humidity in December: 79%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in December
Avon, CT

Average rainfall in December - Avon, CT
  • Average rainfall in December: 3.43"

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in December
Avon, CT

Average rainfall days in December - Avon, CT
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9.4 days).

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Average snowfall in December
Avon, CT

Average snowfall in December - Avon, CT
  • Average snowfall in December: 3.54"

The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Avon, CT

Average snowfall days in December - Avon, CT
  • Average snowfall days in December: 6.1 days

The month with the highest number of snowfall days is February (8.9 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
Avon, CT

Average daylight in December / Average sunshine in December - Avon, CT
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Avon, CT

Average sunshine days in December - Avon, CT
  • Average sunshine days in December: 15.7 days

The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is June (11.6 days).

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Average UV index in December
Avon, CT

Average UV index in December - Avon, CT
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Avon, CT

Average cloud cover in December - Avon, CT
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in December
Avon, CT

Average visibility in December - Avon, CT
  • Average visibility in December: 6mi

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

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Avon, Connecticut, USA

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