December weather forecast
Thompsonville, CT

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Weather in December

The first month of the winter, December, is still a cold month in Thompsonville, Connecticut, with an average temperature varying between 38.3°F (3.5°C) and 27°F (-2.8°C).

Temperature

Observing a mild shift, the average high-temperature during December reduces from November's frosty 48.6°F (9.2°C) to a cold 38.3°F (3.5°C). The average temperature in Thompsonville drops to a subzero cold 27°F (-2.8°C) during the night in the month of December.

Humidity

The average relative humidity in December in Thompsonville is 79%.

Rainfall

The month with the most rainfall in Thompsonville, Connecticut, is December, when the rain falls for 10.6 days and typically aggregates up to 3.03" (77mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Thompsonville. In Thompsonville, in December, snow falls for 5.4 days, with typically accumulated 2.91" (74mm) of snow. Throughout the year, in Thompsonville, there are 33 snowfall days, and 18.03" (458mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 6:59 am and sunset at 4:19 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:29 pm EST.

Sunshine

In December, the average sunshine in Thompsonville is 4.7h.

UV index

The months with the lowest UV index in Thompsonville, Connecticut, are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

How cold is it in Thompsonville in December?

In Thompsonville, in December, the average high-temperature is 38.3°F (3.5°C), and the average low-temperature is 27°F (-2.8°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is calculated to be 86°F (30°C).

What is the average humidity in December in Thompsonville?

The average relative humidity in December in Thompsonville, Connecticut, is 79%.

What is the rainiest month in Thompsonville?

The month with the most rainfall is December, when the rain falls for 10.6 days and typically aggregates up to 3.03" (77mm) of precipitation.

How much does it rain in Thompsonville in December?

In Thompsonville, in December, it is raining for 10.6 days, with typically 3.03" (77mm) of accumulated precipitation.

How many days does it snow in December in Thompsonville?

In Thompsonville, Connecticut, in December, during 5.4 snowfall days, 2.91" (74mm) of snow is typically accumulated.

What is the month with the shortest days in Thompsonville?

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 Thompsonville?

The average day length in December is 9h and 11min.

What time are sunrise and sunset in December in Thompsonville?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:19 pm. On the last day of the month, in Thompsonville, sunrise is at 7:18 am and sunset at 4:29 pm EST.

How many hours of sunshine does Thompsonville have in December?

In December, the average sunshine duration in Thompsonville is 4.7h.

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

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

What is the UV index intensity in December in Thompsonville?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Thompsonville, CT

Average temperature in December - Thompsonville, CT
  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in December: 27°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in December
Thompsonville, CT

Average pressure in December - Thompsonville, 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
Thompsonville, CT

Average wind speed in December - Thompsonville, CT
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in December
Thompsonville, CT

Average humidity in December - Thompsonville, CT
  • Average humidity in December: 79%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in December
Thompsonville, CT

Average rainfall in December - Thompsonville, CT
  • Average rainfall in December: 3.03"

The wettest month (with the highest rainfall) is December (3.03").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in December
Thompsonville, CT

Average rainfall days in December - Thompsonville, CT
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in December
Thompsonville, CT

Average snowfall in December - Thompsonville, CT
  • Average snowfall in December: 2.91"

The month with the highest snowfall is February (5.47").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Thompsonville, CT

Average snowfall days in December - Thompsonville, CT
  • Average snowfall days in December: 5.4 days

The month with the highest number of snowfall days is February (8.9 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
Thompsonville, CT

Average daylight in December / Average sunshine in December - Thompsonville, 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 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in December
Thompsonville, CT

Average sunshine days in December - Thompsonville, CT
  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (12 days).

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Average UV index in December
Thompsonville, CT

Average UV index in December - Thompsonville, 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
Thompsonville, CT

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

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
Thompsonville, CT

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

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

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Thompsonville, Connecticut, USA

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