December weather forecast
North Granby, CT

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Weather in December

The first month of the winter, December, is still a cold month in North Granby, Connecticut, with an average temperature varying between 36.7°F (2.6°C) and 25.5°F (-3.6°C).

Temperature

As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a chilly 46.8°F (8.2°C) to a cold 36.7°F (2.6°C). During December, an average low-temperature of 25.5°F (-3.6°C) is observed in North Granby, Connecticut.

Humidity

In December, the average relative humidity is 80%.

Rainfall

The month with the most rainfall is December, when the rain falls for 10.9 days and typically aggregates up to 3.43" (87mm) of precipitation.

Snowfall

Months with snowfall in North Granby, Connecticut, are January through May, October through December. In North Granby, in December, snow falls for 6.8 days, with typically accumulated 4.25" (108mm) of snow. Throughout the year, in North Granby, Connecticut, there are 37.5 snowfall days, and 21.26" (540mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in North Granby.
On the first day of the month, sunrise is at 7:00 am and sunset at 4:20 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:30 pm EST.

Sunshine

In North Granby, the average sunshine in December is 4.5h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in North Granby. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

How cold is it in North Granby in December?

In December, the average high-temperature and low-temperature in North Granby, Connecticut, are 36.7°F (2.6°C) and 25.5°F (-3.6°C) respectively. In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 86°F (30°C).

What is the average humidity in December in North Granby?

In December, the average relative humidity in North Granby, Connecticut, is 80%.

What is the rainiest month in North Granby?

December is the month with the most rainfall in North Granby. Rain falls for 10.9 days and accumulates 3.43" (87mm) of precipitation.

How many days does it rain in December in North Granby?

In North Granby, in December, during 10.9 rainfall days, 3.43" (87mm) of precipitation is typically accumulated.

How much does it snow in North Granby in December?

In December, in North Granby, it is snowing for 6.8 days. Throughout December, 4.25" (108mm) of snow is accumulated.

What is the month with the shortest days in North Granby?

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

What is the average length of the day in December in North Granby?

In December, the average day length in North Granby is 9h and 11min.

When are sunrise and sunset in December in North Granby?

On the first day of December in North Granby, sunrise is at 7:00 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:30 pm EST.

How long on average sun shines in December in North Granby?

In December, the average sunshine duration in North Granby is 4.5h.

What is the month with the lowest UV index in North Granby?

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

How high is the UV index in December in North Granby?

In December, the average daily maximum UV index in North Granby is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
North Granby, CT

Average temperature in December - North Granby, CT
  • Average high temperature in December: 36.7°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in December: 25.5°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

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Average pressure in December
North Granby, CT

Average pressure in December - North Granby, CT
  • Average pressure in December: 30.05"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
North Granby, CT

Average wind speed in December - North Granby, CT
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in December
North Granby, CT

Average humidity in December - North Granby, CT
  • Average humidity in December: 80%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in December
North Granby, CT

Average rainfall in December - North Granby, 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 (2.17").

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Average rainfall days in December
North Granby, CT

Average rainfall days in December - North Granby, CT
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in December
North Granby, CT

Average snowfall in December - North Granby, CT
  • Average snowfall in December: 4.25"

The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
North Granby, CT

Average snowfall days in December - North Granby, CT
  • Average snowfall days in December: 6.8 days

The month with the highest number of snowfall days is February (9.8 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
North Granby, CT

Average daylight in December / Average sunshine in December - North Granby, 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 3min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

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Average sunshine days in December
North Granby, CT

Average sunshine days in December - North Granby, CT
  • Average sunshine days in December: 14.7 days

The month with the most sunshine days is January (16.6 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in December
North Granby, CT

Average UV index in December - North Granby, CT
  • Average UV index in December: 2

The month with the highest UV index is June (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
North Granby, CT

Average cloud cover in December - North Granby, CT
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in December
North Granby, CT

Average visibility in December - North Granby, CT
  • Average visibility in December: 6mi

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

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North Granby, Connecticut, USA

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