December weather forecast
Dalton, MA

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Weather in December

The first month of the winter, December, is still a cold month in Dalton, Massachusetts, with an average temperature fluctuating between 23°F (-5°C) and 34.2°F (1.2°C).

Temperature

The onset of December comes with a shift in the average high-temperature, falling from a frosty 44.2°F (6.8°C) in November to a cold 34.2°F (1.2°C). During December, the nighttime temperature in Dalton averages of 23°F (-5°C).

Humidity

In December, the average relative humidity is 84%.

Rainfall

In Dalton, Massachusetts, during December, the rain falls for 11 days and regularly aggregates up to 3.15" (80mm) of precipitation. In Dalton, during the entire year, the rain falls for 167.8 days and collects up to 35.43" (900mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Dalton, in December, snow falls for 12.2 days, with typically accumulated 6.61" (168mm) of snow. In Dalton, during the entire year, snow falls for 69.2 days and aggregates up to 40.98" (1041mm) of snow.

Daylight

December has the shortest days of the year in Dalton, Massachusetts, with an average of 9h and 6min of daylight.
On the first day of December in Dalton, Massachusetts, sunrise is at 7:03 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:29 pm EST.

Sunshine

The average sunshine in December in Dalton is 4.1h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

How cold is December in Dalton?

Dalton in December has an average high-temperature of 34.2°F (1.2°C) and an average low-temperature of 23°F (-5°C).

What is the average humidity in December in Dalton?

In Dalton, Massachusetts, the average relative humidity in December is 84%.

How many days does it rain in December in Dalton?

In Dalton, during December, the rain falls for 11 days and regularly aggregates up to 3.15" (80mm) of precipitation.

How much does it snow in Dalton in December?

In Dalton, during December, snow falls for 12.2 days and regularly aggregates up to 6.61" (168mm) of snow.

What is the month with the shortest days in Dalton?

With an average of 9h and 6min of daylight, December has the shortest days of the year in Dalton, Massachusetts.

How many hours of daylight does Dalton have in December?

In December, the average day length is 9h and 8min.

When is the sunrise / sunset in December in Dalton?

In December, on the first day of the month, sunrise is at 7:03 am and sunset at 4:20 pm. On the last day of the month, in Dalton, sunrise is at 7:22 am and sunset at 4:29 pm EST.

How long on average sun shines in December in Dalton?

The average sunshine duration in December in Dalton, Massachusetts, is 4.1h.

When is the lowest UV index in Dalton?

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

How high is the UV index in December in Dalton?

In Dalton, 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
Dalton, MA

Average temperature in December - Dalton, MA
  • Average high temperature in December: 34.2°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in December: 23°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

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Average pressure in December
Dalton, MA

Average pressure in December - Dalton, MA
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Dalton, MA

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

The windiest months (with the highest average wind speed) are January and February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in December
Dalton, MA

Average humidity in December - Dalton, MA
  • Average humidity in December: 84%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in December
Dalton, MA

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

The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is January (2.4").

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Average rainfall days in December
Dalton, MA

Average rainfall days in December - Dalton, MA
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is June (18.5 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in December
Dalton, MA

Average snowfall in December - Dalton, MA
  • Average snowfall in December: 6.61"

The month with the highest snowfall is February (10.35").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Dalton, MA

Average snowfall days in December - Dalton, MA
  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is February (15.9 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
Dalton, MA

Average daylight in December / Average sunshine in December - Dalton, 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 6min).

  • Average sunshine in December: 4h and 1min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

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Average sunshine days in December
Dalton, MA

Average sunshine days in December - Dalton, MA
  • Average sunshine days in December: 11 days

The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is June (9.1 days).

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Average UV index in December
Dalton, MA

Average UV index in December - Dalton, MA
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in December
Dalton, MA

Average cloud cover in December - Dalton, MA
  • Average cloud cover in December: 57

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).

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Average visibility in December
Dalton, MA

Average visibility in December - Dalton, MA
  • Average visibility in December: 5mi

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).

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Dalton, Massachusetts, USA

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