December weather forecast
North Stonington, CT

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Weather in December

The first month of the winter, December, is still a cold month in North Stonington, Connecticut, with an average temperature fluctuating between 31.3°F (-0.4°C) and 41.7°F (5.4°C).

Temperature

North Stonington's December weather comes with a decrease in average high-temperatures, moving from a fresh 50.9°F (10.5°C) in November to an icy 41.7°F (5.4°C). The temperature lowers to an average of 31.3°F (-0.4°C) during December nights.

Humidity

The average relative humidity in December in North Stonington is 76%.

Rainfall

December is the month with the most rainfall. Rain falls for 12.3 days and accumulates 3.78" (96mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In North Stonington, Connecticut, in December, snow falls for 4.6 days, with typically accumulated 1.69" (43mm) of snow. Throughout the year, in North Stonington, there are 26.7 snowfall days, and 9.72" (247mm) of snow is accumulated.

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 6:54 am and sunset at 4:18 pm. On the last day of December, sunrise is at 7:13 am and sunset at 4:28 pm EST.

Sunshine

February and December, with an average of 4.8h of sunshine, are months with the least sunshine.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 2 during December translates into the following guidance:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Around midday, solar radiation is most harmful; hence, exposure should be limited. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The average high-temperature and low-temperature during December are 41.7°F (5.4°C) and 31.3°F (-0.4°C) respectively.

What is the average humidity in December?

The average relative humidity in December in North Stonington is 76%.

What is the wettest month?

December is the month with the most rainfall. Rain falls for 12.3 days and accumulates 3.78" (96mm) of precipitation.

How much does it rain in December?

In December, the rain falls for 12.3 days. Throughout December, 3.78" (96mm) of precipitation is accumulated.

How much does it snow in December?

In North Stonington, in December, snow falls for 4.6 days, with typically accumulated 1.69" (43mm) 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?

The average day length in December is 9h and 14min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:54 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:28 pm EST.

What is the month with the least sunshine?

February and December, with an average of 4.8h of sunshine, are months with the least sunshine.

How many hours of sunshine does North Stonington have in December?

In December, the average sunshine duration is 4.8h.

When is the lowest UV index in North Stonington?

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

What is the UV index reading in December?

In North Stonington, the average daily maximum UV index in December is 2. 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
North Stonington, CT

Average temperature in December - North Stonington, CT
  • Average high temperature in December: 41.7°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 31.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in December
North Stonington, CT

Average pressure in December - North Stonington, CT
  • 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 (29.93"Hg).

Average wind speed in December
North Stonington, CT

Average wind speed in December - North Stonington, CT
  • Average wind speed in December: 10.1mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in December
North Stonington, CT

Average humidity in December - North Stonington, CT
  • Average humidity in December: 76%

The months with the highest relative humidity are June and July (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in December
North Stonington, CT

Average rainfall in December - North Stonington, CT
  • Average rainfall in December: 3.78"

The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
North Stonington, CT

Average rainfall days in December - North Stonington, CT
  • Average rainfall days in December: 12.3 days

The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is January (10 days).

Average snowfall in December
North Stonington, CT

Average snowfall in December - North Stonington, CT
  • Average snowfall in December: 1.69"

The month with the highest snowfall is March (2.56").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
North Stonington, CT

Average snowfall days in December - North Stonington, CT
  • Average snowfall days in December: 4.6 days

The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
North Stonington, CT

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in December
North Stonington, CT

Average sunshine days in December - North Stonington, CT
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is July (11.5 days).

Average UV index in December
North Stonington, CT

Average UV index in December - North Stonington, CT
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (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
North Stonington, CT

Average cloud cover in December - North Stonington, CT
  • Average cloud cover in December: 48

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
North Stonington, CT

Average visibility in December - North Stonington, CT
  • Average visibility in December: 6mi

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

North Stonington, Connecticut, USA

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