December weather forecast
Sutton, MA

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Weather in December

December, the first month of the winter in Sutton, is still a cold month, with temperature in the range of an average high of 38.3°F (3.5°C) and an average low of 27.3°F (-2.6°C).

Temperature

During the transition into December, Sutton observes a decrease in the average high-temperature, falling from a frosty 48.7°F (9.3°C) in November to an icy 38.3°F (3.5°C). During the month of December, the nighttime temperature falls to an average of 27.3°F (-2.6°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

December is the month with the most rainfall. Rain falls for 10.3 days and accumulates 3.15" (80mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Sutton, in December, during 5 snowfall days, 3.03" (77mm) of snow is typically accumulated. In Sutton, during the entire year, snow falls for 32.5 days and aggregates up to 18.78" (477mm) of snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Sutton.
On the first day of the month, sunrise is at 6:56 am and sunset at 4:16 pm. On the last day of December, sunrise is at 7:15 am and sunset at 4:25 pm EST.

Sunshine

In Sutton, the average sunshine in December is 4.8h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Sutton. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.

Frequently asked questions

Is December cold?

During December, Sutton experiences an average high-temperature of 38.3°F (3.5°C) and a low-temperature of 27.3°F (-2.6°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in July is evaluated at 87.8°F (31°C).

What is the average humidity in December?

In Sutton, the average relative humidity in December is 78%.

What is the rainiest month?

December is the month with the most rainfall. Rain falls for 10.3 days and accumulates 3.15" (80mm) of precipitation.

How much does it rain in December?

In Sutton, during December, the rain falls for 10.3 days and regularly aggregates up to 3.15" (80mm) of precipitation.

How many days does it snow in December?

In Sutton, in December, snow falls for 5 days, with typically accumulated 3.03" (77mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Sutton have in December?

The average day length in December is 9h and 10min.

When are sunrise and sunset in December in Sutton?

In December, on the first day of the month, sunrise is at 6:56 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:25 pm EST.

How long on average sun shines in December?

In Sutton, the average sunshine duration in December is 4.8h.

What are the months with the lowest UV index in Sutton?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index value 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
Sutton, MA

Average temperature in December - Sutton, MA
  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in December
Sutton, MA

Average pressure in December - Sutton, MA
  • Average pressure in December: 30.04"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).

Average wind speed in December
Sutton, MA

Average wind speed in December - Sutton, MA
  • Average wind speed in December: 8.5mph

The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in December
Sutton, MA

Average humidity in December - Sutton, MA
  • Average humidity in December: 78%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

Average rainfall in December
Sutton, MA

Average rainfall in December - Sutton, MA
  • Average rainfall in December: 3.15"

The wettest month (with the highest rainfall) is December (3.15").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in December
Sutton, MA

Average rainfall days in December - Sutton, MA
  • Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (7.7 days).

Average snowfall in December
Sutton, MA

Average snowfall in December - Sutton, MA
  • Average snowfall in December: 3.03"

The month with the highest snowfall is March (4.92").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Sutton, MA

Average snowfall days in December - Sutton, MA
  • Average snowfall days in December: 5 days

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Sutton, MA

Average daylight in December / Average sunshine in December - Sutton, 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 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Sutton, MA

Average sunshine days in December - Sutton, MA
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in December
Sutton, MA

Average UV index in December - Sutton, 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).

Average cloud cover in December
Sutton, MA

Average cloud cover in December - Sutton, MA
  • Average cloud cover in December: 47

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in December
Sutton, MA

Average visibility in December - Sutton, MA
  • Average visibility in December: 6mi

The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).

Sutton, Massachusetts, USA

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