December weather forecast
Uncasville, CT

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Weather in December

The first month of the winter, December, is also a wintry month in Uncasville, Connecticut, with an average temperature ranging between min 33.3°F (0.7°C) and max 41.9°F (5.5°C).

Temperature

With December's onset, the weather shows a temperature decrease, transitioning from a cool 50.9°F (10.5°C) in November to a cold 41.9°F (5.5°C). Uncasville in December observes a slight diminution in temperature from daily highs, recording a low-temperature average of 33.3°F (0.7°C).

Humidity

In Uncasville, Connecticut, the average relative humidity in December is 75%.

Rainfall

The month with the most rainfall is December, when the rain falls for 13.4 days and typically aggregates up to 3.86" (98mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Uncasville. In Uncasville, in December, snow falls for 4.8 days, with typically accumulated 1.22" (31mm) of snow. In Uncasville, during the entire year, snow falls for 24 days and aggregates up to 7.68" (195mm) of snow.

Daylight

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

February and December, with an average of 4.9h of sunshine, are months with the least sunshine in Uncasville.

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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 2 during December leads to these instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Around midday, solar radiation is most harmful; hence, exposure should be limited. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

How cold is December in Uncasville?

The high-temperature, in December, in Uncasville, is 41.9°F (5.5°C), while the low-temperature averages to 33.3°F (0.7°C).

What is the average humidity in December in Uncasville?

In Uncasville, the average relative humidity in December is 75%.

What is the wettest month in Uncasville?

December is the month with the most rainfall in Uncasville. Rain falls for 13.4 days and accumulates 3.86" (98mm) of precipitation.

How many days does it rain in December in Uncasville?

In Uncasville, during December, the rain falls for 13.4 days and regularly aggregates up to 3.86" (98mm) of precipitation.

How much does it snow in Uncasville in December?

In Uncasville, during December, snow falls for 4.8 days and regularly aggregates up to 1.22" (31mm) of snow.

What is the month with the shortest days in Uncasville?

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

What is the average length of the day in December in Uncasville?

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

When is the sunrise / sunset in December in Uncasville?

In December, on the first day of the month, 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 Uncasville?

February and December, with an average of 4.9h of sunshine, are months with the least sunshine.

How many hours of sunshine does Uncasville have in December?

The average sunshine duration in December in Uncasville, Connecticut, is 4.9h.

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

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

What is the UV index intensity in December in Uncasville?

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

Average temperature in December - Uncasville, CT
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in December: 33.3°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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Average pressure in December
Uncasville, CT

Average pressure in December - Uncasville, 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
Uncasville, CT

Average wind speed in December - Uncasville, CT
  • Average wind speed in December: 11.5mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

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Average humidity in December
Uncasville, CT

Average humidity in December - Uncasville, CT
  • Average humidity in December: 75%

The month with the highest relative humidity is June (80%).
The months with the lowest relative humidity are January, March, April and November (74%).

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Average rainfall in December
Uncasville, CT

Average rainfall in December - Uncasville, CT
  • Average rainfall in December: 3.86"

The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (1.65").

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Average rainfall days in December
Uncasville, CT

Average rainfall days in December - Uncasville, CT
  • Average rainfall days in December: 13.4 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (9.5 days).

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Average snowfall in December
Uncasville, CT

Average snowfall in December - Uncasville, CT
  • Average snowfall in December: 1.22"

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

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Average snowfall days in December
Uncasville, CT

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

The month with the highest number of snowfall days is February (6.8 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
Uncasville, CT

Average daylight in December / Average sunshine in December - Uncasville, 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 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

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Average sunshine days in December
Uncasville, CT

Average sunshine days in December - Uncasville, CT
  • Average sunshine days in December: 13.9 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (12.5 days).

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Average UV index in December
Uncasville, CT

Average UV index in December - Uncasville, 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
Uncasville, CT

Average cloud cover in December - Uncasville, CT
  • Average cloud cover in December: 47

The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
Uncasville, CT

Average visibility in December - Uncasville, 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).

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Uncasville, Connecticut, USA

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