December weather forecast
Mount Mourne, NC

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Weather in December

The first month of the winter, December, is still a cool month in Mount Mourne, North Carolina, with an average temperature varying between 51.3°F (10.7°C) and 36.5°F (2.5°C).

Temperature

The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from a refreshing 58.3°F (14.6°C) in November to a cool 51.3°F (10.7°C). Mount Mourne records a mean low-temperature of 36.5°F (2.5°C) in December.

Humidity

The months with the highest humidity are May and December, with an average relative humidity of 76%.

Rainfall

In December, the rain falls for 11.2 days. Throughout December, 3.23" (82mm) of precipitation is accumulated. In Mount Mourne, during the entire year, the rain falls for 161.6 days and collects up to 32.91" (836mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. The month with the most snowfall is December, when snow falls for 0.8 days and typically aggregates up to 2.13" (54mm) of snow.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:14 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:20 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 5.3h of sunshine.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Mount Mourne. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 2 during December translates into the following guidance:
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. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

The high-temperature, in December, in Mount Mourne, records 51.3°F (10.7°C), while the low-temperature is 36.5°F (2.5°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What are the most humid months in Mount Mourne?

The months with the highest humidity are May and December, with an average relative humidity of 76%.

What is the average humidity in December?

In Mount Mourne, the average relative humidity in December is 76%.

How much does it rain in December?

In Mount Mourne, during December, the rain falls for 11.2 days and regularly aggregates up to 3.23" (82mm) of precipitation.

What is the snowiest month?

The month with the most snowfall is December, when snow falls for 0.8 days and typically aggregates up to 2.13" (54mm) of snow.

How much does it snow in December?

In Mount Mourne, in December, snow falls for 0.8 days, with typically accumulated 2.13" (54mm) of snow.

What is the month with the shortest days?

With an average of 9h and 48min of daylight, December has the shortest days of the year in Mount Mourne.

What is the average length of the day in December?

In December, the average day length is 9h and 48min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:20 pm EST.

What is the month with the least sunshine in Mount Mourne?

With an average of 5.3h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Mount Mourne have in December?

In December, the average sunshine duration is 5.3h.

What is the month with the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

How high is the UV index in December in Mount Mourne?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk 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
Mount Mourne, NC

Average temperature in December - Mount Mourne, NC
  • Average high temperature in December: 51.3°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in December: 36.5°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure in December
Mount Mourne, NC

Average pressure in December - Mount Mourne, NC
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Mount Mourne, NC

Average wind speed in December - Mount Mourne, NC
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in December
Mount Mourne, NC

Average humidity in December - Mount Mourne, NC
  • Average humidity in December: 76%

The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in December
Mount Mourne, NC

Average rainfall in December - Mount Mourne, NC
  • Average rainfall in December: 3.23"

The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is October (2.13").

Average rainfall days in December
Mount Mourne, NC

Average rainfall days in December - Mount Mourne, NC
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is August (18 days).
The month with the least rainy days is November (9.2 days).

Average snowfall in December
Mount Mourne, NC

Average snowfall in December - Mount Mourne, NC
  • Average snowfall in December: 2.13"

The month with the highest snowfall is December (2.13").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Mount Mourne, NC

Average snowfall days in December - Mount Mourne, NC
  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is February (2.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Mount Mourne, NC

Average daylight in December / Average sunshine in December - Mount Mourne, NC
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in December
Mount Mourne, NC

Average sunshine days in December - Mount Mourne, NC
  • Average sunshine days in December: 17.2 days

The months with the most sunshine days are October and November (19.2 days).
The month with the least sunshine days is August (10.9 days).

Average UV index in December
Mount Mourne, NC

Average UV index in December - Mount Mourne, NC
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Mount Mourne, NC

Average cloud cover in December - Mount Mourne, NC
  • Average cloud cover in December: 43

The months with the most cloud cover are February and December (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 30).

Average visibility in December
Mount Mourne, NC

Average visibility in December - Mount Mourne, NC
  • 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).

Mount Mourne, North Carolina, USA

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