December weather forecast
Nonantum, MA

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Weather in December

December, the first month of the winter in Nonantum, is also a wintry month, with an average temperature ranging between min 28.8°F (-1.8°C) and max 39.2°F (4°C).

Temperature

Nonantum's December weather shows a moderate shift in high-temperatures, falling from November's frosty 49.3°F (9.6°C) to an icy 39.2°F (4°C). Nonantum, during December, witnesses an average low-temperature of 28.8°F (-1.8°C).

Humidity

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

Rainfall

In December, in Nonantum, the rain falls for 6.1 days. Throughout December, 0.55" (14mm) of precipitation is accumulated. Throughout the year, in Nonantum, there are 85.9 rainfall days, and 5.87" (149mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Nonantum, Massachusetts, are January through May, November and December. The month with the most snowfall in Nonantum is December, when snow falls for 2.6 days and typically aggregates up to 0.91" (23mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 6:55 am and sunset at 4:13 pm. On the last day of December, in Nonantum, sunrise is at 7:13 am and sunset at 4:22 pm EST.

Sunshine

In Nonantum, the average sunshine in December is 4.9h.

UV index

The months with the lowest UV index in Nonantum are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 2 during December translates into the following guidance:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

How cold is December in Nonantum?

In Nonantum, 39.2°F (4°C) is the average high-temperature and 28.8°F (-1.8°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 84.2°F (29°C).

What is the average humidity in December in Nonantum?

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

How many days does it rain in December in Nonantum?

In Nonantum, Massachusetts, during December, the rain falls for 6.1 days and regularly aggregates up to 0.55" (14mm) of precipitation.

What is the snowiest month in Nonantum?

December is the month with the most snowfall. Snow falls for 2.6 days and accumulates 0.91" (23mm) of snow.

How much does it snow in Nonantum in December?

In December, it is snowing for 2.6 days. Throughout December, 0.91" (23mm) of snow is accumulated.

What is the month with the shortest days in Nonantum?

The month with the shortest days in Nonantum is December, with an average of 9h and 6min of daylight.

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

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

When is the sunrise / sunset in December in Nonantum?

On the first day of December, sunrise is at 6:55 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:22 pm EST.

How long on average sun shines in December in Nonantum?

In December, the average sunshine duration in Nonantum, Massachusetts, is 4.9h.

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

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

What is the UV index reading in December in Nonantum?

The average daily maximum UV index in December in Nonantum is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Nonantum, MA

Average temperature in December - Nonantum, MA
  • Average high temperature in December: 39.2°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in December: 28.8°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in December
Nonantum, MA

Average pressure in December - Nonantum, MA
  • Average pressure in December: 30.03"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Nonantum, MA

Average wind speed in December - Nonantum, MA
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in December
Nonantum, MA

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

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).

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Average rainfall in December
Nonantum, MA

Average rainfall in December - Nonantum, MA
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.24").

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Average rainfall days in December
Nonantum, MA

Average rainfall days in December - Nonantum, MA
  • Average rainfall days in December: 6.1 days

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is February (4.1 days).

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Average snowfall in December
Nonantum, MA

Average snowfall in December - Nonantum, MA
  • Average snowfall in December: 0.91"

The month with the highest snowfall is December (0.91").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Nonantum, MA

Average snowfall days in December - Nonantum, MA
  • Average snowfall days in December: 2.6 days

The month with the highest number of snowfall days is January (4.9 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
Nonantum, MA

Average daylight in December / Average sunshine in December - Nonantum, 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 5min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in December
Nonantum, MA

Average sunshine days in December - Nonantum, MA
  • Average sunshine days in December: 22.2 days

The months with the most sunshine days are January and November (22.5 days).
The month with the least sunshine days is June (17.5 days).

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Average UV index in December
Nonantum, MA

Average UV index in December - Nonantum, 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
Nonantum, MA

Average cloud cover in December - Nonantum, MA
  • Average cloud cover in December: 46

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in December
Nonantum, MA

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

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