December weather forecast
Plainville, CT

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Weather in December

The first month of the winter, December, is also an icy month in Plainville, Connecticut, with an average temperature ranging between min 28°F (-2.2°C) and max 38.8°F (3.8°C).

Temperature

December brings a minor decrease, with the average high-temperature reducing from a frosty 48.9°F (9.4°C) in November to a wintry 38.8°F (3.8°C). Plainville's nights in December experience an average temperature drop to a subzero cold 28°F (-2.2°C).

Humidity

In December, the average relative humidity in Plainville, Connecticut, is 78%.

Rainfall

The month with the most rainfall in Plainville is December, when the rain falls for 12.1 days and typically aggregates up to 3.54" (90mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Plainville, Connecticut, during December, snow falls for 5.5 days and regularly aggregates up to 3.23" (82mm) of snow. In Plainville, during the entire year, snow falls for 31.7 days and aggregates up to 17.2" (437mm) of snow.

Daylight

December has the shortest days of the year in Plainville, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 6:59 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:31 pm EST.

Sunshine

In Plainville, Connecticut, the average sunshine in December is 4.8h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 1 during December translates into the following directions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

How cold is it in Plainville in December?

In Plainville, 38.8°F (3.8°C) is the average high-temperature and 28°F (-2.2°C) is the average low-temperature during December. The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 84.2°F (29°C).

What is the average humidity in December in Plainville?

In Plainville, Connecticut, the average relative humidity in December is 78%.

What is the rainiest month in Plainville?

December is the month with the most rainfall in Plainville. Rain falls for 12.1 days and accumulates 3.54" (90mm) of precipitation.

How much does it rain in Plainville in December?

In December, in Plainville, Connecticut, the rain falls for 12.1 days. Throughout December, 3.54" (90mm) of precipitation is accumulated.

How much does it snow in Plainville in December?

In December, in Plainville, Connecticut, it is snowing for 5.5 days. Throughout December, 3.23" (82mm) of snow is accumulated.

What is the month with the shortest days in Plainville?

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

How many hours of daylight does Plainville have in December?

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

When is the sunrise / sunset in December in Plainville?

On the first day of December, sunrise is at 6:59 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:31 pm EST.

How many hours of sunshine does Plainville have in December?

In December, the average sunshine duration in Plainville, Connecticut, is 4.8h.

What is the month with the lowest UV index in Plainville?

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

What is the UV index reading in December in Plainville?

In December, the average daily maximum UV index in Plainville is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Plainville, CT

Average temperature in December - Plainville, CT
  • Average high temperature in December: 38.8°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in December: 28°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in December
Plainville, CT

Average pressure in December - Plainville, 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).

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Average wind speed in December
Plainville, CT

Average wind speed in December - Plainville, CT
  • Average wind speed in December: 7.9mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in December
Plainville, CT

Average humidity in December - Plainville, CT
  • Average humidity in December: 78%

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
Plainville, CT

Average rainfall in December - Plainville, CT
  • Average rainfall in December: 3.54"

The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in December
Plainville, CT

Average rainfall days in December - Plainville, CT
  • Average rainfall days in December: 12.1 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.8 days).

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Average snowfall in December
Plainville, CT

Average snowfall in December - Plainville, CT
  • Average snowfall in December: 3.23"

The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Plainville, CT

Average snowfall days in December - Plainville, CT
  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is February (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Plainville, CT

Average daylight in December / Average sunshine in December - Plainville, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Plainville, CT

Average sunshine days in December - Plainville, CT
  • Average sunshine days in December: 14.7 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (10.4 days).

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Average UV index in December
Plainville, CT

Average UV index in December - Plainville, 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
Plainville, CT

Average cloud cover in December - Plainville, CT
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in December
Plainville, CT

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

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

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Plainville, Connecticut, USA

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