December weather forecast
West Wareham, MA

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Weather in December

December, the first month of the winter in West Wareham, is also a wintry month, with an average temperature ranging between min 33.6°F (0.9°C) and max 42.3°F (5.7°C).

Temperature

The onset of December entails a subtle temperature shift, as the average high-temperature eases from a fresh 50.9°F (10.5°C) in November to a cold 42.3°F (5.7°C). December nights in West Wareham witness a mild cool down to an average low of 33.6°F (0.9°C).

Humidity

The average relative humidity in December is 76%.

Rainfall

In West Wareham, in December, it is raining for 10.3 days, with typically 1.5" (38mm) of accumulated precipitation. In West Wareham, during the entire year, the rain falls for 136.3 days and collects up to 15.63" (397mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in West Wareham. In December, in West Wareham, it is snowing for 3.2 days. Throughout December, 0.75" (19mm) of snow is accumulated. Throughout the year, in West Wareham, there are 21.6 snowfall days, and 4.29" (109mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:51 am and sunset at 4:13 pm. On the last day of December, sunrise is at 7:10 am and sunset at 4:22 pm EST.

Sunshine

In West Wareham, the average sunshine in December is 4.9h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 2 suggests this advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

How cold is it in West Wareham in December?

December temperatures vary between a high-temperature of 42.3°F (5.7°C) and a low-temperature of 33.6°F (0.9°C).

What is the average humidity in December in West Wareham?

In December, the average relative humidity in West Wareham, Massachusetts, is 76%.

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

In West Wareham, Massachusetts, in December, it is raining for 10.3 days, with typically 1.5" (38mm) of accumulated precipitation.

How many days does it snow in December in West Wareham?

In West Wareham, during December, snow falls for 3.2 days and regularly aggregates up to 0.75" (19mm) of snow.

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

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

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

The average day length in December is 9h and 12min.

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

In December, on the first day of the month, sunrise is at 6:51 am and sunset at 4:13 pm. On the last day of the month, in West Wareham, sunrise is at 7:10 am and sunset at 4:22 pm EST.

How long on average sun shines in December in West Wareham?

The average sunshine duration in December is 4.9h.

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

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

What is the UV index reading in December in West Wareham?

In West Wareham, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
West Wareham, MA

Average temperature in December - West Wareham, MA
  • Average high temperature in December: 42.3°F

The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in December: 33.6°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 (27.3°F).

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Average pressure in December
West Wareham, MA

Average pressure in December - West Wareham, 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 Wareham, MA

Average wind speed in December - West Wareham, MA
  • Average wind speed in December: 12.3mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average humidity in December
West Wareham, MA

Average humidity in December - West Wareham, 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 and November (74%).

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Average rainfall in December
West Wareham, MA

Average rainfall in December - West Wareham, MA
  • Average rainfall in December: 1.5"

The wettest month (with the highest rainfall) is October (1.89").
The driest month (with the least rainfall) is February (0.98").

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Average rainfall days in December
West Wareham, MA

Average rainfall days in December - West Wareham, MA
  • Average rainfall days in December: 10.3 days

The months with the highest number of rainy days are May and July (14.1 days).
The month with the least rainy days is February (7.7 days).

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Average snowfall in December
West Wareham, MA

Average snowfall in December - West Wareham, MA
  • Average snowfall in December: 0.75"

The month with the highest snowfall is February (1.1").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
West Wareham, MA

Average snowfall days in December - West Wareham, MA
  • Average snowfall days in December: 3.2 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 and September (0 days).

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Average daylight in December /
Average sunshine in December
West Wareham, MA

Average daylight in December / Average sunshine in December - West Wareham, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in December
West Wareham, MA

Average sunshine days in December - West Wareham, MA
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is December (17.7 days).
The month with the least sunshine days is April (14.3 days).

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Average UV index in December
West Wareham, MA

Average UV index in December - West Wareham, 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
West Wareham, MA

Average cloud cover in December - West Wareham, MA
  • Average cloud cover in December: 48

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
West Wareham, MA

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

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