December weather forecast
North Truro, MA

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Weather in December

The first month of the winter, December, is also a frosty month in North Truro, Massachusetts, with an average temperature fluctuating between 43.2°F (6.2°C) and 35.8°F (2.1°C).

Temperature

With the onset of December, the average high-temperature subtly recedes from November's fresh 50.4°F (10.2°C) to a frosty 43.2°F (6.2°C). A consistent average low of 35.8°F (2.1°C) is noted throughout December, only a small step down from its daytime high.

Humidity

In December, the average relative humidity in North Truro, Massachusetts, is 76%.

Rainfall

December is the month with the most rainfall. Rain falls for 12.1 days and accumulates 3.39" (86mm) of precipitation.

Snowfall

Months with snowfall in North Truro are January through April, November and December. In North Truro, during December, snow falls for 3.4 days and regularly aggregates up to 0.71" (18mm) of snow. Throughout the year, in North Truro, there are 20.3 snowfall days, and 5.39" (137mm) of snow is accumulated.

Daylight

December has the shortest days of the year in North Truro, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 6:49 am and sunset at 4:09 pm. On the last day of December, in North Truro, sunrise is at 7:08 am and sunset at 4:18 pm EST.

Sunshine

With an average of 4.4h of sunshine, December has the least sunshine of the year.

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 Truro. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

Is December cold in North Truro?

In North Truro, in December, the average high-temperature is 43.2°F (6.2°C), and the average low-temperature is 35.8°F (2.1°C).

What is the average humidity in December in North Truro?

The average relative humidity in December in North Truro, Massachusetts, is 76%.

What is the rainiest month in North Truro?

The month with the most rainfall in North Truro is December, when the rain falls for 12.1 days and typically aggregates up to 3.39" (86mm) of precipitation.

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

In North Truro, in December, during 12.1 rainfall days, 3.39" (86mm) of precipitation is typically accumulated.

How much does it snow in North Truro in December?

In North Truro, in December, during 3.4 snowfall days, 0.71" (18mm) of snow is typically accumulated.

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

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

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

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

What time are sunrise and sunset in December in North Truro?

On the first day of December in North Truro, sunrise is at 6:49 am and sunset at 4:09 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 4:18 pm EST.

What is the month with the least sunshine in North Truro?

December has the least sunshine of the year in North Truro, Massachusetts, with an average of 4.4h of sunshine.

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

In North Truro, Massachusetts, the average sunshine duration in December is 4.4h.

What are the months with the lowest UV index in North Truro?

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

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

In December, the average daily maximum UV index in North Truro is 2. A UV Index estimate 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
North Truro, MA

Average temperature in December - North Truro, MA
  • Average high temperature in December: 43.2°F

The warmest month (with the highest average high temperature) is August (71.8°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in December: 35.8°F

The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in December
North Truro, MA

Average pressure in December - North Truro, MA
  • Average pressure in December: 30.02"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
North Truro, MA

Average wind speed in December - North Truro, MA
  • Average wind speed in December: 17.1mph

The windiest month (with the highest average wind speed) is January (17.8mph).
The calmest month (with the lowest average wind speed) is August (10.9mph).

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Average humidity in December
North Truro, MA

Average humidity in December - North Truro, MA
  • Average humidity in December: 76%

The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in December
North Truro, MA

Average rainfall in December - North Truro, MA
  • Average rainfall in December: 3.39"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (2.17").

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Average rainfall days in December
North Truro, MA

Average rainfall days in December - North Truro, MA
  • Average rainfall days in December: 12.1 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (8.6 days).

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Average snowfall in December
North Truro, MA

Average snowfall in December - North Truro, MA
  • Average snowfall in December: 0.71"

The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
North Truro, MA

Average snowfall days in December - North Truro, MA
  • Average snowfall days in December: 3.4 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
North Truro, MA

Average daylight in December / Average sunshine in December - North Truro, MA
  • 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).

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Average sunshine days in December
North Truro, MA

Average sunshine days in December - North Truro, MA
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is July (12.6 days).

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Average UV index in December
North Truro, MA

Average UV index in December - North Truro, MA
  • Average UV index in December: 2

The month with the highest UV index is July (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 Truro, MA

Average cloud cover in December - North Truro, MA
  • Average cloud cover in December: 53

The month with the most cloud cover is December (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in December
North Truro, MA

Average visibility in December - North Truro, MA
  • 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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North Truro, Massachusetts, USA

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