December weather forecast
Norwich, CT

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Weather in December

The frigid winter takes center stage in Norwich, Connecticut come December. There's a stark contrast in weather from the end of November, with the mercury dipping even further and snowfall settling at 1.73" (44mm). The shortest daylight duration of the year takes over the city, resulting in longer and chillier nights. The city dons a white blanket of snow, amplifying its enchanting appeal. Despite the cold and reduced sunlight hours, the spirit of the holiday season keeps the city warm and inviting.

Temperature

Norwich's progression into December involves a drop in the average high-temperature, receding from a cool 50.2°F (10.1°C) in November to a cold 40.8°F (4.9°C). Norwich witnesses a consistent average low-temperature of 29.8°F (-1.2°C) throughout December.

Humidity

In December, the average relative humidity is 76%.

Rainfall

December is the month with the most rainfall. Rain falls for 11.3 days and accumulates 3.7" (94mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Norwich, during December, snow falls for 4.8 days and regularly aggregates up to 1.73" (44mm) of snow. Throughout the year, in Norwich, there are 26.4 snowfall days, and 11.14" (283mm) of snow is accumulated.

Daylight

The month with the shortest days in Norwich is December, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 6:55 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:28 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 4.6h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Norwich. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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Frequently asked questions

Is it cold in Norwich during December?

The high-temperature, in December, in Norwich, records 40.8°F (4.9°C), while the low-temperature is 29.8°F (-1.2°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 87.8°F (31°C).

What is the average humidity in December in Norwich?

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

What is the rainiest month in Norwich?

The month with the most rainfall is December, when the rain falls for 11.3 days and typically aggregates up to 3.7" (94mm) of precipitation.

How many days does it rain in December in Norwich?

In Norwich, Connecticut, in December, it is raining for 11.3 days, with typically 3.7" (94mm) of accumulated precipitation.

How much does it snow in Norwich in December?

In Norwich, Connecticut, in December, during 4.8 snowfall days, 1.73" (44mm) of snow is typically accumulated.

What is the month with the shortest days in Norwich?

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

How many hours of daylight does Norwich have in December?

In Norwich, the average day length in December is 9h and 14min.

What time are sunrise and sunset in December in Norwich?

On the first day of December, sunrise is at 6:55 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:28 pm EST.

What is the month with the least sunshine in Norwich?

With an average of 4.6h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Norwich have in December?

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

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

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

How high is the UV index in December in Norwich?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
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
Norwich, CT

Average temperature in December - Norwich, CT
  • Average high temperature in December: 40.8°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 (34.9°F).

  • Average low temperature in December: 29.8°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in December
Norwich, CT

Average pressure in December - Norwich, 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
Norwich, CT

Average wind speed in December - Norwich, CT
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

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Average humidity in December
Norwich, CT

Average humidity in December - Norwich, CT
  • Average humidity in December: 76%

The months with the highest relative humidity are February, June, July and September (78%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in December
Norwich, CT

Average rainfall in December - Norwich, CT
  • Average rainfall in December: 3.7"

The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in December
Norwich, CT

Average rainfall days in December - Norwich, CT
  • Average rainfall days in December: 11.3 days

The months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is January (9 days).

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Average snowfall in December
Norwich, CT

Average snowfall in December - Norwich, CT
  • Average snowfall in December: 1.73"

The month with the highest snowfall is March (3.43").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Norwich, CT

Average snowfall days in December - Norwich, CT
  • Average snowfall days in December: 4.8 days

The month with the highest number of snowfall days is February (7.3 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
Norwich, CT

Average daylight in December / Average sunshine in December - Norwich, 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 months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

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Average sunshine days in December
Norwich, CT

Average sunshine days in December - Norwich, CT
  • Average sunshine days in December: 15.9 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (11.6 days).

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Average UV index in December
Norwich, CT

Average UV index in December - Norwich, 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).

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Average cloud cover in December
Norwich, CT

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

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

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Average visibility in December
Norwich, CT

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

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

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Norwich, Connecticut, USA

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