December weather forecast
New Preston, CT

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Weather in December

December, the first month of the winter in New Preston, is also a wintry month, with an average temperature varying between 37°F (2.8°C) and 26.6°F (-3°C).

Temperature

With the onset of December, New Preston experiences a modest temperature adjustment, with the average high-temperature receding from a frosty 47.1°F (8.4°C) in November to a cold 37°F (2.8°C). New Preston throughout December, experiences an average nighttime temperature of 26.6°F (-3°C).

Humidity

The average relative humidity in December is 80%.

Rainfall

In New Preston, during December, the rain falls for 10.9 days and regularly aggregates up to 3.35" (85mm) of precipitation. In New Preston, during the entire year, the rain falls for 161.7 days and collects up to 34.41" (874mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In New Preston, in December, during 6.9 snowfall days, 2.95" (75mm) of snow is typically accumulated. In New Preston, Connecticut, during the entire year, snow falls for 38.3 days and aggregates up to 19.84" (504mm) of snow.

Daylight

The month with the shortest days in New Preston is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:23 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:33 pm EST.

Sunshine

The average sunshine in December is 4.6h.

UV index

The months with the lowest UV index 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 health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 2 during December leads to these instructions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

New Preston in December has an average high-temperature of 37°F (2.8°C) and an average low-temperature of 26.6°F (-3°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in December?

In New Preston, the average relative humidity in December is 80%.

How much does it rain in December?

In New Preston, in December, during 10.9 rainfall days, 3.35" (85mm) of precipitation is typically accumulated.

How much does it snow in December?

In New Preston, during December, snow falls for 6.9 days and regularly aggregates up to 2.95" (75mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 13min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:01 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:33 pm EST.

How many hours of sunshine does New Preston have in December?

In New Preston, the average sunshine duration in December is 4.6h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
New Preston, CT

Average temperature in December - New Preston, CT
  • Average high temperature in December: 37°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in December: 26.6°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in December
New Preston, CT

Average pressure in December - New Preston, 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).

Average wind speed in December
New Preston, CT

Average wind speed in December - New Preston, CT
  • Average wind speed in December: 7.4mph

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
New Preston, CT

Average humidity in December - New Preston, CT
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (73%).

Average rainfall in December
New Preston, CT

Average rainfall in December - New Preston, CT
  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is July (3.7").
The driest month (with the least rainfall) is January (2.13").

Average rainfall days in December
New Preston, CT

Average rainfall days in December - New Preston, CT
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (7.7 days).

Average snowfall in December
New Preston, CT

Average snowfall in December - New Preston, CT
  • Average snowfall in December: 2.95"

The month with the highest snowfall is February (5.16").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
New Preston, CT

Average snowfall days in December - New Preston, CT
  • Average snowfall days in December: 6.9 days

The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
New Preston, CT

Average daylight in December / Average sunshine in December - New Preston, 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 month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in December
New Preston, CT

Average sunshine days in December - New Preston, CT
  • Average sunshine days in December: 15.7 days

The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in December
New Preston, CT

Average UV index in December - New Preston, CT
  • Average UV index in December: 2

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

Average cloud cover in December
New Preston, CT

Average cloud cover in December - New Preston, CT
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in December
New Preston, CT

Average visibility in December - New Preston, CT
  • 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).

New Preston, Connecticut, USA

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