December weather forecast
West Barnstable, MA

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Weather in December

December, the first month of the winter in West Barnstable, is still a chilly month, with an average temperature ranging between min 36.7°F (2.6°C) and max 43.5°F (6.4°C).

Temperature

December's onset brings a negligible change in high-temperatures, falling from a fresh 51.1°F (10.6°C) in November to a frosty 43.5°F (6.4°C). West Barnstable, during December nights, observes a steady temperature, averaging at an icy 36.7°F (2.6°C).

Humidity

In December, the average relative humidity is 75%.

Rainfall

In West Barnstable, Massachusetts, in December, it is raining for 11 days, with typically 1.38" (35mm) of accumulated precipitation. In West Barnstable, during the entire year, the rain falls for 129.6 days and collects up to 13.94" (354mm) of precipitation.

Snowfall

Months with snowfall in West Barnstable are January through April and December. December is the first month it typically snows in West Barnstable, Massachusetts. Throughout December, in the average 4.2 snowfall days, it receives 0.43" (11mm) of snow. Throughout the year, in West Barnstable, Massachusetts, there are 21.6 snowfall days, and 2.17" (55mm) of snow is accumulated.

Daylight

December has the shortest days of the year, 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 4:11 pm. On the last day of December, in West Barnstable, sunrise is at 7:08 am and sunset at 4:21 pm EST.

Sunshine

December has the least sunshine of the year in West Barnstable, with an average of 4.6h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in West Barnstable. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Stay sun-safe with clothing that is both closely woven and worn loosely. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

Is it cold in West Barnstable during December?

In West Barnstable, 43.5°F (6.4°C) is the average high-temperature and 36.7°F (2.6°C) is the average low-temperature during December.

What is the average humidity in December in West Barnstable?

In December, the average relative humidity in West Barnstable, Massachusetts, is 75%.

How many days does it rain in December in West Barnstable?

In West Barnstable, in December, it is raining for 11 days, with typically 1.38" (35mm) of accumulated precipitation.

When does it start to snow in West Barnstable?

December is the first month it typically snows in West Barnstable, Massachusetts. Throughout December, in the average 4.2 snowfall days, it receives 0.43" (11mm) of snow.

What is the month with the shortest days in West Barnstable?

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

What is the average length of the day in December in West Barnstable?

In December, the average day length is 9h and 13min.

What time are sunrise and sunset in December in West Barnstable?

On the first day of December in West Barnstable, Massachusetts, sunrise is at 6:49 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 4:21 pm EST.

What is the month with the least sunshine in West Barnstable?

With an average of 4.6h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does West Barnstable have in December?

In December, the average sunshine duration in West Barnstable, Massachusetts, is 4.6h.

What is the month with the lowest UV index in West Barnstable?

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

How high is the UV index in December in West Barnstable?

In West Barnstable, Massachusetts, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe 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
West Barnstable, MA

Average temperature in December - West Barnstable, MA
  • Average high temperature in December: 43.5°F

The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in December: 36.7°F

The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

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Average pressure in December
West Barnstable, MA

Average pressure in December - West Barnstable, MA
  • Average pressure in December: 30.03"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
West Barnstable, MA

Average wind speed in December - West Barnstable, MA
  • Average wind speed in December: 15.8mph

The windiest month (with the highest average wind speed) is January (16.4mph).
The calmest month (with the lowest average wind speed) is August (10.4mph).

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Average humidity in December
West Barnstable, MA

Average humidity in December - West Barnstable, MA
  • Average humidity in December: 75%

The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in December
West Barnstable, MA

Average rainfall in December - West Barnstable, MA
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is October (1.89").
The driest month (with the least rainfall) is August (0.94").

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Average rainfall days in December
West Barnstable, MA

Average rainfall days in December - West Barnstable, MA
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is February (8.1 days).

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Average snowfall in December
West Barnstable, MA

Average snowfall in December - West Barnstable, MA
  • Average snowfall in December: 0.43"

The months with the highest snowfall are January and February (0.63").
The months with the least snowfall are May, June, July, August, September, October and November (0").

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Average snowfall days in December
West Barnstable, MA

Average snowfall days in December - West Barnstable, MA
  • Average snowfall days in December: 4.2 days

The month with the highest number of snowfall days is January (6.6 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
West Barnstable, MA

Average daylight in December / Average sunshine in December - West Barnstable, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

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Average sunshine days in December
West Barnstable, MA

Average sunshine days in December - West Barnstable, MA
  • Average sunshine days in December: 15.7 days

The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is February (14.8 days).

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Average UV index in December
West Barnstable, MA

Average UV index in December - West Barnstable, MA
  • Average UV index in December: 2

The months with the highest UV index are 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
West Barnstable, MA

Average cloud cover in December - West Barnstable, MA
  • Average cloud cover in December: 50

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in December
West Barnstable, MA

Average visibility in December - West Barnstable, 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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West Barnstable, Massachusetts, USA

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