December weather forecast
Belmont, NH

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Weather in December

The first month of the winter, December, is also a wintry month in Belmont, New Hampshire, with an average temperature varying between 32.4°F (0.2°C) and 21.7°F (-5.7°C).

Temperature

The start of December involves a temperature drop, moving from a chilly 43.7°F (6.5°C) in November to an icy 32.4°F (0.2°C). Throughout December, an average low-temperature of 21.7°F (-5.7°C) is expected.

Humidity

In December, the average relative humidity in Belmont is 81%.

Rainfall

In Belmont, in December, during 8.7 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. In Belmont, during the entire year, the rain falls for 132.1 days and collects up to 29.25" (743mm) of precipitation.

Snowfall

Months with snowfall in Belmont are January through May, October through December. In Belmont, in December, during 9.9 snowfall days, 6.93" (176mm) of snow is typically accumulated. Throughout the year, in Belmont, New Hampshire, there are 56.1 snowfall days, and 40.39" (1026mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Belmont, with an average of 9h and 0min of daylight.
On the first day of December in Belmont, sunrise is at 6:59 am and sunset at 4:10 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:19 pm EST.

Sunshine

In Belmont, New Hampshire, the average sunshine in December is 4.4h.

UV index

In Belmont, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

How cold is December in Belmont?

In Belmont, 32.4°F (0.2°C) is the average high-temperature and 21.7°F (-5.7°C) is the average low-temperature during December.

What is the average humidity in December in Belmont?

In December, the average relative humidity is 81%.

How much does it rain in Belmont in December?

In December, in Belmont, the rain falls for 8.7 days. Throughout December, 2.99" (76mm) of precipitation is accumulated.

How many days does it snow in December in Belmont?

In December, it is snowing for 9.9 days. Throughout December, 6.93" (176mm) of snow is accumulated.

What is the month with the shortest days in Belmont?

December has the shortest days of the year, with an average of 9h and 0min of daylight.

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

In Belmont, New Hampshire, the average day length in December is 9h and 1min.

When is the sunrise / sunset in December in Belmont?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:10 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:19 pm EST.

How long on average sun shines in December in Belmont?

The average sunshine duration in December in Belmont, New Hampshire, is 4.4h.

What is the UV index reading in December in Belmont?

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

Average temperature in December - Belmont, NH
  • Average high temperature in December: 32.4°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in December: 21.7°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

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Average pressure in December
Belmont, NH

Average pressure in December - Belmont, NH
  • 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 (29.91"Hg).

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Average wind speed in December
Belmont, NH

Average wind speed in December - Belmont, NH
  • Average wind speed in December: 6.7mph

The windiest month (with the highest average wind speed) is January (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in December
Belmont, NH

Average humidity in December - Belmont, NH
  • Average humidity in December: 81%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in December
Belmont, NH

Average rainfall in December - Belmont, NH
  • Average rainfall in December: 2.99"

The wettest month (with the highest rainfall) is October (3.27").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in December
Belmont, NH

Average rainfall days in December - Belmont, NH
  • Average rainfall days in December: 8.7 days

The month with the highest number of rainy days is April (14.4 days).
The month with the least rainy days is February (5.5 days).

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Average snowfall in December
Belmont, NH

Average snowfall in December - Belmont, NH
  • Average snowfall in December: 6.93"

The month with the highest snowfall is February (10.63").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Belmont, NH

Average snowfall days in December - Belmont, NH
  • Average snowfall days in December: 9.9 days

The month with the highest number of snowfall days is February (12.7 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
Belmont, NH

Average daylight in December / Average sunshine in December - Belmont, NH
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

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Average sunshine days in December
Belmont, NH

Average sunshine days in December - Belmont, NH
  • Average sunshine days in December: 15.3 days

The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is March (12.8 days).

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Average UV index in December
Belmont, NH

Average UV index in December - Belmont, NH
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in December
Belmont, NH

Average cloud cover in December - Belmont, NH
  • Average cloud cover in December: 52

The month with the most cloud cover is March (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in December
Belmont, NH

Average visibility in December - Belmont, NH
  • Average visibility in December: 5mi

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

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Belmont, New Hampshire, USA

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