December weather forecast
Ballouville, CT

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Weather in December

The first month of the winter, December, is still a cold month in Ballouville, Connecticut, with temperature in the range of an average low of 28.8°F (-1.8°C) and an average high of 39.4°F (4.1°C).

Temperature

Onset of December comes with a temperature decline, the average high falling from a frosty 49.1°F (9.5°C) in November to a cold 39.4°F (4.1°C). Ballouville's average low-temperature during December nights is observed to be a subzero cold 28.8°F (-1.8°C).

Humidity

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

Rainfall

The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 3.43" (87mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Ballouville, in December, during 5 snowfall days, 2.48" (63mm) of snow is typically accumulated. Throughout the year, in Ballouville, there are 30.6 snowfall days, and 14.02" (356mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Ballouville, Connecticut.
On the first day of the month, sunrise is at 6:56 am and sunset at 4:17 pm. On the last day of December, in Ballouville, Connecticut, sunrise is at 7:14 am and sunset at 4:26 pm EST.

Sunshine

The average sunshine in December is 4.8h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Ballouville. 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, an average UV index of 2 transforms into the following instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

How cold is it in Ballouville in December?

Ballouville in December has an average high-temperature of 39.4°F (4.1°C) and an average low-temperature of 28.8°F (-1.8°C). In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is estimated at 86°F (30°C).

What is the average humidity in December in Ballouville?

The average relative humidity in December in Ballouville, Connecticut, is 78%.

What is the wettest month in Ballouville?

December is the month with the most rainfall in Ballouville, Connecticut. Rain falls for 11.5 days and accumulates 3.43" (87mm) of precipitation.

How much does it rain in Ballouville in December?

In Ballouville, in December, it is raining for 11.5 days, with typically 3.43" (87mm) of accumulated precipitation.

How many days does it snow in December in Ballouville?

In December, in Ballouville, Connecticut, it is snowing for 5 days. Throughout December, 2.48" (63mm) of snow is accumulated.

What is the month with the shortest days in Ballouville?

The month with the shortest days in Ballouville, Connecticut, is December, with an average of 9h and 12min of daylight.

How many hours of daylight does Ballouville have in December?

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

When is the sunrise / sunset in December in Ballouville?

In December, on the first day of the month, sunrise is at 6:56 am and sunset at 4:17 pm. On the last day of the month, in Ballouville, sunrise is at 7:14 am and sunset at 4:26 pm EST.

How many hours of sunshine does Ballouville have in December?

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

When is the lowest UV index in Ballouville?

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

How high is the UV index in December in Ballouville?

The average daily maximum UV index in December in Ballouville is 2. A UV Index of 2, and less, symbolizes 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
Ballouville, CT

Average temperature in December - Ballouville, CT
  • Average high temperature in December: 39.4°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 28.8°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in December
Ballouville, CT

Average pressure in December - Ballouville, CT
  • Average pressure in December: 30.04"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
Ballouville, CT

Average wind speed in December - Ballouville, CT
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in December
Ballouville, CT

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

The months with the highest relative humidity are February, June, July, September and October (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in December
Ballouville, CT

Average rainfall in December - Ballouville, CT
  • Average rainfall in December: 3.43"

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.81").

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Average rainfall days in December
Ballouville, CT

Average rainfall days in December - Ballouville, CT
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in December
Ballouville, CT

Average snowfall in December - Ballouville, CT
  • Average snowfall in December: 2.48"

The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Ballouville, CT

Average snowfall days in December - Ballouville, CT
  • Average snowfall days in December: 5 days

The month with the highest number of snowfall days is January (7.8 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
Ballouville, CT

Average daylight in December / Average sunshine in December - Ballouville, 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 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 42min).

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Average sunshine days in December
Ballouville, CT

Average sunshine days in December - Ballouville, CT
  • Average sunshine days in December: 15.8 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.6 days).

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Average UV index in December
Ballouville, CT

Average UV index in December - Ballouville, 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
Ballouville, CT

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

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

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Average visibility in December
Ballouville, CT

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

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

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Ballouville, Connecticut, USA

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