December weather forecast
North Westport, MA

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Weather in December

December, the first month of the winter in North Westport, is also an icy month, with an average temperature fluctuating between 31.8°F (-0.1°C) and 42.1°F (5.6°C).

Temperature

December's arrival signals a moderate reduction in the average high-temperature, easing from a fresh 50.9°F (10.5°C) in November to a wintry 42.1°F (5.6°C). Throughout December, an average low-temperature of 31.8°F (-0.1°C) is expected.

Humidity

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

Rainfall

In North Westport, Massachusetts, in December, it is raining for 9.6 days, with typically 1.73" (44mm) of accumulated precipitation. In North Westport, during the entire year, the rain falls for 135.4 days and collects up to 18.31" (465mm) of precipitation.

Snowfall

Months with snowfall in North Westport are January through May, November and December. In North Westport, during December, snow falls for 3.3 days and regularly aggregates up to 1.42" (36mm) of snow. Throughout the year, in North Westport, there are 21.2 snowfall days, and 7.17" (182mm) of snow is accumulated.

Daylight

The month with the shortest days in North Westport is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 6:52 am and sunset at 4:14 pm. On the last day of December, sunrise is at 7:11 am and sunset at 4:24 pm EST.

Sunshine

The months with the least sunshine in North Westport are February and December, with an average of 4.9h of sunshine.

UV index

January through March and December, with an average maximum UV index of 2, are months with the lowest UV index in North Westport. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

How cold is December in North Westport?

North Westport in December has an average high-temperature of 42.1°F (5.6°C) and an average low-temperature of 31.8°F (-0.1°C).

What is the average humidity in December in North Westport?

The average relative humidity in December is 76%.

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

In North Westport, in December, it is raining for 9.6 days, with typically 1.73" (44mm) of accumulated precipitation.

How many days does it snow in December in North Westport?

In North Westport, in December, during 3.3 snowfall days, 1.42" (36mm) of snow is typically accumulated.

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

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 Westport?

In North Westport, Massachusetts, the average day length in December is 9h and 13min.

When is the sunrise / sunset in December in North Westport?

On the first day of December, sunrise is at 6:52 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:24 pm EST.

What are the months with the least sunshine in North Westport?

February and December, with an average of 4.9h of sunshine, are months with the least sunshine in North Westport.

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

The average sunshine duration in December is 4.9h.

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

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

What is the UV index reading in December in North Westport?

The average daily maximum UV index in December in North Westport, Massachusetts, is 2. A UV Index estimate of 2, and below, represents 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
North Westport, MA

Average temperature in December - North Westport, MA
  • Average high temperature in December: 42.1°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in December: 31.8°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in December
North Westport, MA

Average pressure in December - North Westport, MA
  • Average pressure in December: 30.03"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
North Westport, MA

Average wind speed in December - North Westport, MA
  • Average wind speed in December: 10.3mph

The windiest months (with the highest average wind speed) are January, February and March (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).

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Average humidity in December
North Westport, MA

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

The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in December
North Westport, MA

Average rainfall in December - North Westport, MA
  • Average rainfall in December: 1.73"

The wettest month (with the highest rainfall) is October (1.97").
The driest month (with the least rainfall) is September (1.06").

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Average rainfall days in December
North Westport, MA

Average rainfall days in December - North Westport, MA
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is February (6.9 days).

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Average snowfall in December
North Westport, MA

Average snowfall in December - North Westport, MA
  • Average snowfall in December: 1.42"

The month with the highest snowfall is March (2.13").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
North Westport, MA

Average snowfall days in December - North Westport, MA
  • Average snowfall days in December: 3.3 days

The month with the highest number of snowfall days is January (5.9 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
North Westport, MA

Average daylight in December / Average sunshine in December - North Westport, 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 5min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

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Average sunshine days in December
North Westport, MA

Average sunshine days in December - North Westport, MA
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is April (13.6 days).

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Average UV index in December
North Westport, MA

Average UV index in December - North Westport, MA
  • 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 and December (UV index 2).

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Average cloud cover in December
North Westport, MA

Average cloud cover in December - North Westport, MA
  • Average cloud cover in December: 46

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
North Westport, MA

Average visibility in December - North Westport, 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 Westport, Massachusetts, USA

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