December weather forecast
Concord, NH

A rocky coast overlooking beach homes in Rye, Concord point, New Hampshire
A rocky coast overlooking beach homes in Rye, Concord point, New Hampshire

Weather in December

The first month of the winter, December, is still a cold month in Concord, New Hampshire, with an average temperature ranging between min 23.4°F (-4.8°C) and max 34.3°F (1.3°C).

Temperature

In Concord, New Hampshire, the average high-temperature in December drops from a frosty 45.5°F (7.5°C) in November to a wintry 34.3°F (1.3°C). In December, the average low-temperature is 23.4°F (-4.8°C).

Humidity

The average relative humidity in December in Concord is 80%.

Rainfall

In Concord, in December, it is raining for 9 days, with typically 2.8" (71mm) of accumulated precipitation. Throughout the year, in Concord, there are 139.1 rainfall days, and 27.72" (704mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Concord. In December, it is snowing for 7.9 days. Throughout December, 6.14" (156mm) of snow is accumulated. Throughout the year, in Concord, there are 44.5 snowfall days, and 28.94" (735mm) of snow is accumulated.

Daylight

With an average of 9h and 3min of daylight, December has the shortest days of the year in Concord.
On the first day of December in Concord, sunrise is at 6:58 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:20 pm EST.

Sunshine

In Concord, the average sunshine in December is 4.7h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 in December transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in December in Concord?

In December, the average relative humidity in Concord, New Hampshire, is 80%.

How much does it rain in Concord in December?

In Concord, New Hampshire, during December, the rain falls for 9 days and regularly aggregates up to 2.8" (71mm) of precipitation.

How many days does it snow in December in Concord?

In Concord, New Hampshire, during December, snow falls for 7.9 days and regularly aggregates up to 6.14" (156mm) of snow.

What is the month with the shortest days in Concord?

With an average of 9h and 3min of daylight, December has the shortest days of the year in Concord.

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

In December, the average day length in Concord, New Hampshire, is 9h and 3min.

When are sunrise and sunset in December in Concord?

On the first day of December in Concord, sunrise is at 6:58 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:20 pm EST.

How many hours of sunshine does Concord have in December?

The average sunshine duration in December is 4.7h.

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

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

How high is the UV index in December in Concord?

In Concord, New Hampshire, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe 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
Concord, NH

Average temperature in December - Concord, NH
  • Average high temperature in December: 34.3°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in December: 23.4°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

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Average pressure in December
Concord, NH

Average pressure in December - Concord, NH
  • 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
Concord, NH

Average wind speed in December - Concord, NH
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in December
Concord, NH

Average humidity in December - Concord, NH
  • Average humidity in December: 80%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in December
Concord, NH

Average rainfall in December - Concord, NH
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is September (1.65").

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Average rainfall days in December
Concord, NH

Average rainfall days in December - Concord, NH
  • Average rainfall days in December: 9 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.5 days).

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Average snowfall in December
Concord, NH

Average snowfall in December - Concord, NH
  • Average snowfall in December: 6.14"

The month with the highest snowfall is February (7.36").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Concord, NH

Average snowfall days in December - Concord, NH
  • Average snowfall days in December: 7.9 days

The month with the highest number of snowfall days is January (10.8 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
Concord, NH

Average daylight in December / Average sunshine in December - Concord, NH
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 20min).
The month with the shortest days is December (Average daylight: 9h and 3min).

  • Average sunshine in December: 4h and 42min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in December
Concord, NH

Average sunshine days in December - Concord, NH
  • Average sunshine days in December: 16.7 days

The month with the most sunshine days is September (17.4 days).
The month with the least sunshine days is April (13.6 days).

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Average UV index in December
Concord, NH

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

The months with the highest UV index are July and August (UV index 6).
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
Concord, NH

Average cloud cover in December - Concord, NH
  • Average cloud cover in December: 48

The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in December
Concord, NH

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

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

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