December weather forecast
Sunapee, NH

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Weather in December

December marks the onset of winter in Sunapee. Freezing temperatures return and snowfall increases to 7.32" (186mm). The town takes on a festive charm as snow blankets the streets and rooftops. Despite the cold weather, December carries a jovial mood with holiday decorations and a spirit of celebration. Outdoor activities shift to accommodate the cold weather, allowing residents to enjoy the winter season fully.

Temperature

As November transitions to December, the average high-temperature in Sunapee falls from an icy 42.6°F (5.9°C) to a freezing cold 31.6°F (-0.2°C). Sunapee cools down to an average low-temperature of 21°F (-6.1°C) throughout the month of December.

Humidity

The average relative humidity in December is 83%.

Rainfall

In Sunapee, during December, the rain falls for 10.9 days and regularly aggregates up to 2.91" (74mm) of precipitation. In Sunapee, during the entire year, the rain falls for 153.2 days and collects up to 29.92" (760mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Sunapee. In Sunapee, New Hampshire, in December, snow falls for 12 days, with typically accumulated 7.32" (186mm) of snow. In Sunapee, during the entire year, snow falls for 65.4 days and aggregates up to 42.72" (1085mm) of snow.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year in Sunapee.
On the first day of December, sunrise is at 7:01 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:22 pm EST.

Sunshine

In December, the average sunshine is 4.3h.

UV index

February and December, with an average maximum UV index of 1, are months with the lowest UV index in Sunapee. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: In December, an average UV index of 1 transforms into the following instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

How cold is December in Sunapee?

The high-temperature in Sunapee, New Hampshire, during December is 31.6°F (-0.2°C) and the low-temperature is 21°F (-6.1°C).

What is the average humidity in December in Sunapee?

In December, the average relative humidity in Sunapee is 83%.

How many days does it rain in December in Sunapee?

In Sunapee, in December, it is raining for 10.9 days, with typically 2.91" (74mm) of accumulated precipitation.

How much does it snow in Sunapee in December?

In Sunapee, in December, during 12 snowfall days, 7.32" (186mm) of snow is typically accumulated.

What is the month with the shortest days in Sunapee?

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

How many hours of daylight does Sunapee have in December?

The average day length in December is 9h and 2min.

When are sunrise and sunset in December in Sunapee?

On the first day of December in Sunapee, sunrise is at 7:01 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:22 pm EST.

How many hours of sunshine does Sunapee have in December?

The average sunshine duration in December in Sunapee, New Hampshire, is 4.3h.

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

The months with the lowest UV index in Sunapee are February and December, with an average maximum UV index of 1.

What is the UV index reading in December in Sunapee?

In December, the average daily maximum UV index in Sunapee is 1. A UV Index reading of 2, and below, represents a low health threat from exposure to Sun's UV rays.
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
Sunapee, NH

Average temperature in December - Sunapee, NH
  • Average high temperature in December: 31.6°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (25.9°F).

  • Average low temperature in December: 21°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).

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Average pressure in December
Sunapee, NH

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

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Average wind speed in December
Sunapee, NH

Average wind speed in December - Sunapee, NH
  • Average wind speed in December: 7.2mph

The windiest months (with the highest average wind speed) are January, February, March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Sunapee, NH

Average humidity in December - Sunapee, NH
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in December
Sunapee, NH

Average rainfall in December - Sunapee, NH
  • Average rainfall in December: 2.91"

The wettest month (with the highest rainfall) is October (3.39").
The driest month (with the least rainfall) is September (2.05").

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Average rainfall days in December
Sunapee, NH

Average rainfall days in December - Sunapee, NH
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (7.9 days).

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Average snowfall in December
Sunapee, NH

Average snowfall in December - Sunapee, NH
  • Average snowfall in December: 7.32"

The month with the highest snowfall is February (11.18").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Sunapee, NH

Average snowfall days in December - Sunapee, NH
  • Average snowfall days in December: 12 days

The month with the highest number of snowfall days is February (14.3 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
Sunapee, NH

Average daylight in December / Average sunshine in December - Sunapee, 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: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

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Average sunshine days in December
Sunapee, NH

Average sunshine days in December - Sunapee, NH
  • Average sunshine days in December: 13.4 days

The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is February (11.3 days).

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Average UV index in December
Sunapee, NH

Average UV index in December - Sunapee, NH
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in December
Sunapee, NH

Average cloud cover in December - Sunapee, NH
  • Average cloud cover in December: 55

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in December
Sunapee, NH

Average visibility in December - Sunapee, NH
  • 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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Sunapee, New Hampshire, USA

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