December weather forecast and climate
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 average temperature fluctuating between 23.4°F (-4.8°C) and 34.3°F (1.3°C).

Temperature

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

Humidity

In December, the average relative humidity is 80%.

Rainfall

In Concord, during December, the rain falls for 9 days and regularly aggregates up to 2.8" (71mm) of precipitation. Throughout the year, there are 139.1 rainfall days, and 27.72" (704mm) of precipitation is accumulated.

Snowfall

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

Daylight

With an average of 9h of daylight, December has the shortest days of the year.

Sunshine

In Concord, the average sunshine is 4.7h.

UV index

Months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Concord?

In December, in Concord, the average high-temperature is 34.3°F (1.3°C), and the average low-temperature is 23.4°F (-4.8°C).

What is the average humidity in December in Concord?

The average relative humidity in December is 80%.

How much does it rain in Concord in December?

In Concord, New Hampshire, in December, it is raining for 9 days, with typically 2.8" (71mm) of accumulated precipitation.

How many days does it snow in December in Concord?

In Concord, in December, snow falls for 7.9 days, with typically accumulated 6.14" (156mm) of snow.

What is the month with the shortest days in Concord?

December has the shortest days of the year in Concord, New Hampshire, with an average of 9h of daylight.

How many hours of daylight does Concord have in December?

In December, the average length of the day is 9h.

How long on average sun shines in December in Concord?

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

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

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 Concord?

The average daily maximum UV index in December in Concord is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to the Sun's UV rays.

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"

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

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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").
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).
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

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9h).

  • Average sunshine in December: 4.7h

The month with the most sunshine is August (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.4h).

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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

Months with the highest UV index are July and August (UV index 6).
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

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).
Months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).

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