December weather forecast
Plympton, MA

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Weather in December

The first month of the winter, December, is still a cold month in Plympton, Massachusetts, with an average temperature varying between 32.9°F (0.5°C) and 41.9°F (5.5°C).

Temperature

Plympton's weather subtly changes with the onset of December, barely falling from a fresh 50.7°F (10.4°C) in November to a cold 41.9°F (5.5°C). Plympton's December nights demonstrate minimal variation from the daytime temperatures, with an average of 32.9°F (0.5°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Plympton, in December, it is raining for 9.8 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, in Plympton, there are 132.2 rainfall days, and 16.3" (414mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Plympton are January through April, November and December. In Plympton, in December, snow falls for 4 days, with typically accumulated 1.02" (26mm) of snow. Throughout the year, there are 23.3 snowfall days, and 5.87" (149mm) of snow is accumulated.

Daylight

The month with the shortest days in Plympton, Massachusetts, is December, with an average of 9h and 12min of daylight.
On the first day of December in Plympton, sunrise is at 6:52 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:22 pm EST.

Sunshine

The months with the least sunshine are February and December, with an average of 4.7h of sunshine.

UV index

The months with the lowest UV index in Plympton are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is it in Plympton in December?

The average high-temperature, in December, in Plympton, is 41.9°F (5.5°C), while the average low-temperature is 32.9°F (0.5°C).

What is the average humidity in December in Plympton?

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

How many days does it rain in December in Plympton?

In December, the rain falls for 9.8 days. Throughout December, 1.54" (39mm) of precipitation is accumulated.

How much does it snow in Plympton in December?

In December, it is snowing for 4 days. Throughout December, 1.02" (26mm) of snow is accumulated.

What is the month with the shortest days in Plympton?

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

What is the average length of the day in December in Plympton?

In December, the average day length in Plympton, Massachusetts, is 9h and 11min.

What time are sunrise and sunset in December in Plympton?

In December, on the first day of the month, sunrise is at 6:52 am and sunset at 4:12 pm. On the last day of the month, in Plympton, Massachusetts, sunrise is at 7:11 am and sunset at 4:22 pm EST.

What is the month with the least sunshine in Plympton?

February and December, with an average of 4.7h of sunshine, are months with the least sunshine in Plympton, Massachusetts.

How many hours of sunshine does Plympton have in December?

In Plympton, the average sunshine duration in December is 4.7h.

What is the month with the lowest UV index in Plympton?

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

How high is the UV index in December in Plympton?

In December, the average daily maximum UV index in Plympton is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Plympton, MA

Average temperature in December - Plympton, MA
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (35.8°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in December
Plympton, MA

Average pressure in December - Plympton, 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
Plympton, MA

Average wind speed in December - Plympton, MA
  • Average wind speed in December: 11.6mph

The windiest month (with the highest average wind speed) is January (12.3mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

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Average humidity in December
Plympton, MA

Average humidity in December - Plympton, MA
  • Average humidity in December: 76%

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

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Average rainfall in December
Plympton, MA

Average rainfall in December - Plympton, MA
  • Average rainfall in December: 1.54"

The wettest months (with the highest rainfall) are July and October (1.65").
The driest month (with the least rainfall) is February (1.02").

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Average rainfall days in December
Plympton, MA

Average rainfall days in December - Plympton, MA
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (7.4 days).

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Average snowfall in December
Plympton, MA

Average snowfall in December - Plympton, MA
  • Average snowfall in December: 1.02"

The month with the highest snowfall is March (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
Plympton, MA

Average snowfall days in December - Plympton, MA
  • Average snowfall days in December: 4 days

The month with the highest number of snowfall days is January (7.1 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
Plympton, MA

Average daylight in December / Average sunshine in December - Plympton, 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 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).

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Average sunshine days in December
Plympton, MA

Average sunshine days in December - Plympton, MA
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is July (14.8 days).

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Average UV index in December
Plympton, MA

Average UV index in December - Plympton, 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
Plympton, MA

Average cloud cover in December - Plympton, MA
  • Average cloud cover in December: 48

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
Plympton, MA

Average visibility in December - Plympton, 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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Plympton, Massachusetts, USA

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