December weather forecast
North Westchester, CT

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Weather in December

The first month of the winter, December, is also a wintry month in North Westchester, Connecticut, with an average temperature varying between 40.3°F (4.6°C) and 29.7°F (-1.3°C).

Temperature

As December commences, the average high-temperature shows a reduction, transitioning from a chilly 49.6°F (9.8°C) in November to a wintry 40.3°F (4.6°C). North Westchester experiences an average low-temperature of 29.7°F (-1.3°C) in the month of December.

Humidity

In North Westchester, the average relative humidity in December is 76%.

Rainfall

The month with the most rainfall is December, when the rain falls for 6.8 days and typically aggregates up to 1.02" (26mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In North Westchester, in December, snow falls for 4.1 days, with typically accumulated 0.75" (19mm) of snow. In North Westchester, during the entire year, snow falls for 22.3 days and aggregates up to 3.82" (97mm) 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 6:57 am and sunset at 4:20 pm. On the last day of December, in North Westchester, sunrise is at 7:16 am and sunset at 4:29 pm EST.

Sunshine

February and December, with an average of 4.6h of sunshine, are months with the least sunshine.

UV index

The month with the lowest UV index in North Westchester is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, a daily UV index of 1 turns into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is it in North Westchester in December?

The average high-temperature and low-temperature in North Westchester during December are 40.3°F (4.6°C) and 29.7°F (-1.3°C) respectively. In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is computed to be 87.8°F (31°C).

What is the average humidity in December in North Westchester?

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

What is the wettest month in North Westchester?

The month with the most rainfall in North Westchester is December, when the rain falls for 6.8 days and typically aggregates up to 1.02" (26mm) of precipitation.

How much does it rain in North Westchester in December?

In North Westchester, Connecticut, in December, during 6.8 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

How many days does it snow in December in North Westchester?

In North Westchester, Connecticut, in December, during 4.1 snowfall days, 0.75" (19mm) of snow is typically accumulated.

What is the month with the shortest days in North Westchester?

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

How many hours of daylight does North Westchester have in December?

In December, the average day length in North Westchester, Connecticut, is 9h and 13min.

When are sunrise and sunset in December in North Westchester?

On the first day of December in North Westchester, Connecticut, sunrise is at 6:57 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:29 pm EST.

What is the month with the least sunshine in North Westchester?

February and December, with an average of 4.6h of sunshine, are months with the least sunshine.

How long on average sun shines in December in North Westchester?

In North Westchester, Connecticut, the average sunshine duration in December is 4.6h.

When is the lowest UV index in North Westchester?

December is the month with the lowest UV index in North Westchester, with an average maximum UV index of 1.

What is the UV index reading in December in North Westchester?

The average daily maximum UV index in December in North Westchester, Connecticut, is 1. A UV Index estimate of 2, and below, represents 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
North Westchester, CT

Average temperature in December - North Westchester, CT
  • Average high temperature in December: 40.3°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 (34.3°F).

  • Average low temperature in December: 29.7°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

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Average pressure in December
North Westchester, CT

Average pressure in December - North Westchester, 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).

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Average wind speed in December
North Westchester, CT

Average wind speed in December - North Westchester, CT
  • Average wind speed in December: 8.3mph

The windiest months (with the highest average wind speed) are January and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in December
North Westchester, CT

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

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in December
North Westchester, CT

Average rainfall in December - North Westchester, CT
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is December (1.02").
The driest month (with the least rainfall) is September (0.35").

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Average rainfall days in December
North Westchester, CT

Average rainfall days in December - North Westchester, CT
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is July (11.8 days).
The month with the least rainy days is January (5.1 days).

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Average snowfall in December
North Westchester, CT

Average snowfall in December - North Westchester, CT
  • Average snowfall in December: 0.75"

The month with the highest snowfall is March (1.26").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
North Westchester, CT

Average snowfall days in December - North Westchester, CT
  • Average snowfall days in December: 4.1 days

The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - North Westchester, 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 4min

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

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Average sunshine days in December
North Westchester, CT

Average sunshine days in December - North Westchester, CT
  • Average sunshine days in December: 20.2 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (17.1 days).

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Average UV index in December
North Westchester, CT

Average UV index in December - North Westchester, CT
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
North Westchester, CT

Average cloud cover in December - North Westchester, CT
  • Average cloud cover in December: 49

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

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Average visibility in December
North Westchester, CT

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

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

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North Westchester, Connecticut, USA

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