December weather forecast
New Bedford, MA

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Amazing stonework looking over at the white Breakwater Entrance Lighthouse in the New Bedford Harbor, Massachusetts
Amazing stonework looking over at the white Breakwater Entrance Lighthouse in the New Bedford Harbor, Massachusetts

Weather in December

December welcomes winter in full force to New Bedford. Fetching winter temperatures range from 33.3°F (0.7°C) to 42.4°F (5.8°C). It’s a time when the city is often dressed in its full winter attire, accompanied by snowfall. Muted daylight and stronger winds add to the overall brisk and cold conditions. Despite the chilly weather, New Bedford’s December offers an enchanting winter charm, making it a uniquely beautiful time in the city.

Temperature

New Bedford observes a small decrease in the average high-temperature with the arrival of December, falling from November's fresh 50.9°F (10.5°C) to a wintry 42.4°F (5.8°C). New Bedford witnesses an average low-temperature of 33.3°F (0.7°C) throughout the month of December.

Humidity

The average relative humidity in December in New Bedford is 76%.

Rainfall

In New Bedford, in December, it is raining for 9.5 days, with typically 1.69" (43mm) of accumulated precipitation. In New Bedford, during the entire year, the rain falls for 133.2 days and collects up to 17.2" (437mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in New Bedford. In New Bedford, during December, snow falls for 3.2 days and regularly aggregates up to 0.79" (20mm) of snow. In New Bedford, during the entire year, snow falls for 21.4 days and aggregates up to 5.87" (149mm) of snow.

Ocean temperature

In New Bedford, the average seawater temperature in December is 46.9°F (8.3°C).
Note: If planning to swim in 46.9°F (8.3°C) under 50°F (10°C), wear a protective suit. Neglecting this advice might cause immediate cold shock and troubled breathing. A splash around 55.4°F (13°C) is not much warmer.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in New Bedford.
On the first day of the month, sunrise is at 6:51 am and sunset at 4:14 pm. On the last day of December, in New Bedford, sunrise is at 7:10 am and sunset at 4:23 pm EST.

Sunshine

In December, the average sunshine in New Bedford is 4.9h.

UV index

The months with the lowest UV index in New Bedford are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

How cold is December in New Bedford?

The average high-temperature and low-temperature in New Bedford during December are 42.4°F (5.8°C) and 33.3°F (0.7°C) respectively.

What is the average humidity in December in New Bedford?

In December, the average relative humidity in New Bedford is 76%.

How much does it rain in New Bedford in December?

In New Bedford, in December, during 9.5 rainfall days, 1.69" (43mm) of precipitation is typically accumulated.

How many days does it snow in December in New Bedford?

In New Bedford, in December, snow falls for 3.2 days, with typically accumulated 0.79" (20mm) of snow.

How cold is the water in December in New Bedford?

In New Bedford, the average seawater temperature in December is 46.9°F (8.3°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the month with the shortest days in New Bedford?

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

What is the average length of the day in December in New Bedford?

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

When are sunrise and sunset in December in New Bedford?

On the first day of December in New Bedford, Massachusetts, sunrise is at 6:51 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 4:23 pm EST.

How many hours of sunshine does New Bedford have in December?

The average sunshine duration in December in New Bedford is 4.9h.

What is the month with the lowest UV index in New Bedford?

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

How high is the UV index in December in New Bedford?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat 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
New Bedford, MA

Average temperature in December - New Bedford, MA
  • Average high temperature in December: 42.4°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (36.3°F).

  • Average low temperature in December: 33.3°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

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Average pressure in December
New Bedford, MA

Average pressure in December - New Bedford, 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
New Bedford, MA

Average wind speed in December - New Bedford, MA
  • Average wind speed in December: 11.2mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (8mph).

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Average humidity in December
New Bedford, MA

Average humidity in December - New Bedford, MA
  • Average humidity in December: 76%

The months with the highest relative humidity are June and July (80%).
The months with the lowest relative humidity are March, April and November (74%).

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Average rainfall in December
New Bedford, MA

Average rainfall in December - New Bedford, MA
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is October (1.93").
The driest month (with the least rainfall) is September (1.06").

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Average rainfall days in December
New Bedford, MA

Average rainfall days in December - New Bedford, MA
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is January (8.2 days).

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Average snowfall in December
New Bedford, MA

Average snowfall in December - New Bedford, MA
  • Average snowfall in December: 0.79"

The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
New Bedford, MA

Average snowfall days in December - New Bedford, MA
  • Average snowfall days in December: 3.2 days

The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature in December
New Bedford, MA

Average sea temperature in December - New Bedford, MA
  • Average sea temperature in December: 46.9°F

The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).

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Average daylight in December /
Average sunshine in December
New Bedford, MA

Average daylight in December / Average sunshine in December - New Bedford, MA
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
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 month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in December
New Bedford, MA

Average sunshine days in December - New Bedford, MA
  • Average sunshine days in December: 18.3 days

The months with the most sunshine days are November and December (18.3 days).
The month with the least sunshine days is April (14.4 days).

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Average UV index in December
New Bedford, MA

Average UV index in December - New Bedford, 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, November and December (UV index 2).

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Average cloud cover in December
New Bedford, MA

Average cloud cover in December - New Bedford, MA
  • Average cloud cover in December: 47

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in December
New Bedford, MA

Average visibility in December - New Bedford, 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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New Bedford, Massachusetts, USA

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