December weather forecast
Durham, NH

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Weather in December

December in Durham ushers in the full swing of winter. Compared to the transitional November, temperatures in December remain consistently low. Maximum snowfall is recorded in this month at 4.53" (115mm), transforming Durham into a winter wonderland. Reduced daylight hours add to the festive spirit of the holiday season. Affording beautiful snow-covered landscapes and festive joy, December signifies an end to the weather cycle, paving the way for a new year.

Temperature

The transition into December in Durham indicates a reduction in the average high-temperature, down to a wintry 37°F (2.8°C) from November's frosty 46.6°F (8.1°C). Durham throughout December, experiences an average nighttime temperature of 27.3°F (-2.6°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

The months with the most rainfall are October and December, with an average 2.87" (73mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. December is the month with the most snowfall in Durham. Snow falls for 7.3 days and accumulates 4.53" (115mm) of snow.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year in Durham.
On the first day of December, sunrise is at 6:56 am and sunset at 4:09 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:18 pm EST.

Sunshine

February and December, with an average of 4.8h of sunshine, are months with the least sunshine in Durham.

UV index

January through March, November and 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 hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a regular UV index of 2 translates into these guidelines:
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-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Durham in December?

Durham in December has an average high-temperature of 37°F (2.8°C) and an average low-temperature of 27.3°F (-2.6°C).

What is the average humidity in December in Durham?

The average relative humidity in December is 78%.

What is the wettest month in Durham?

The months with the most rainfall in Durham are October and December, with an average 2.87" (73mm) of precipitation.

How many days does it rain in December in Durham?

In Durham, in December, during 11.2 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

When does it snow the most in Durham?

The month with the most snowfall in Durham is December, when snow falls for 7.3 days and typically aggregates up to 4.53" (115mm) of snow.

How much does it snow in Durham in December?

In Durham, during December, snow falls for 7.3 days and regularly aggregates up to 4.53" (115mm) of snow.

What is the month with the shortest days in Durham?

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

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

In Durham, New Hampshire, the average day length in December is 9h and 4min.

When are sunrise and sunset in December in Durham?

On the first day of December in Durham, New Hampshire, sunrise is at 6:56 am and sunset at 4:09 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:18 pm EST.

What are the months with the least sunshine in Durham?

The months with the least sunshine are February and December, with an average of 4.8h of sunshine.

How long on average sun shines in December in Durham?

In December, the average sunshine duration is 4.8h.

When is the lowest UV index in Durham?

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

How high is the UV index in December in Durham?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Durham, NH

Average temperature in December - Durham, NH
  • Average high temperature in December: 37°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in December
Durham, NH

Average pressure in December - Durham, 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 (29.92"Hg).

Average wind speed in December
Durham, NH

Average wind speed in December - Durham, NH
  • Average wind speed in December: 10mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in December
Durham, NH

Average humidity in December - Durham, NH
  • Average humidity in December: 78%

The months with the highest relative humidity are January and February (80%).
The months with the lowest relative humidity are April and November (75%).

Average rainfall in December
Durham, NH

Average rainfall in December - Durham, NH
  • Average rainfall in December: 2.87"

The wettest months (with the highest rainfall) are October and December (2.87").
The driest month (with the least rainfall) is September (1.46").

Average rainfall days in December
Durham, NH

Average rainfall days in December - Durham, NH
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (7.6 days).

Average snowfall in December
Durham, NH

Average snowfall in December - Durham, NH
  • Average snowfall in December: 4.53"

The month with the highest snowfall is December (4.53").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Durham, NH

Average snowfall days in December - Durham, NH
  • Average snowfall days in December: 7.3 days

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Durham, NH

Average daylight in December / Average sunshine in December - Durham, NH
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 18min).
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 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in December
Durham, NH

Average sunshine days in December - Durham, NH
  • Average sunshine days in December: 14.9 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is April (13.2 days).

Average UV index in December
Durham, NH

Average UV index in December - Durham, 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, November and December (UV index 2).

Average cloud cover in December
Durham, NH

Average cloud cover in December - Durham, NH
  • Average cloud cover in December: 47

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Durham, NH

Average visibility in December - Durham, NH
  • 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).

Durham, New Hampshire, USA

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