December weather forecast
Mar-Mac, NC

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Weather in December

The first month of the winter, December, is still a cool month in Mar-Mac, North Carolina, with temperature in the range of an average low of 39.9°F (4.4°C) and an average high of 54.3°F (12.4°C).

Temperature

With the arrival of December, Mar-Mac experiences a modest decline in average high-temperatures, transitioning from a moderate 60.6°F (15.9°C) in November to a cool 54.3°F (12.4°C). In the month of December, the average temperature dips to a wintry 39.9°F (4.4°C) during the night.

Humidity

In December, the average relative humidity in Mar-Mac is 76%.

Rainfall

In Mar-Mac, in December, during 10.5 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, in Mar-Mac, there are 165.9 rainfall days, and 34.17" (868mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.28" (7mm) of snow. In Mar-Mac, during the entire year, snow falls for 2.3 days and aggregates up to 1.81" (46mm) of snow.

Daylight

December has the shortest days of the year in Mar-Mac, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 7:03 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:10 pm EST.

Sunshine

January and December, with an average of 5.5h of sunshine, are months with the least sunshine.

UV index

In Mar-Mac, North Carolina, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 3 in December translates into this advice:
Ensure safety - Sun damage prevention is strongly urged. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

What are December temperatures in Mar-Mac?

The average high-temperature and low-temperature during December are 54.3°F (12.4°C) and 39.9°F (4.4°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in September is computed to be 87.8°F (31°C).

What is the average humidity in December in Mar-Mac?

In Mar-Mac, North Carolina, the average relative humidity in December is 76%.

How many days does it rain in December in Mar-Mac?

In Mar-Mac, North Carolina, in December, during 10.5 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

When does it start snowing in Mar-Mac?

December is the first month it typically snows in Mar-Mac. Throughout December, in the average 0.2 snowfall days, it receives 0.28" (7mm) of snow.

What is the month with the shortest days in Mar-Mac?

The month with the shortest days in Mar-Mac, North Carolina, is December, with an average of 9h and 48min of daylight.

How many hours of daylight does Mar-Mac have in December?

In December, the average day length in Mar-Mac is 9h and 49min.

When is the sunrise / sunset in December in Mar-Mac?

On the first day of December, sunrise is at 7:03 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:10 pm EST.

What are the months with the least sunshine in Mar-Mac?

The months with the least sunshine are January and December, with an average of 5.5h of sunshine.

How many hours of sunshine does Mar-Mac have in December?

In Mar-Mac, the average sunshine duration in December is 5.5h.

What is the UV index intensity in December in Mar-Mac?

In Mar-Mac, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a medium health risk 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
Mar-Mac, NC

Average temperature in December - Mar-Mac, NC
  • Average high temperature in December: 54.3°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (49.6°F).

  • Average low temperature in December: 39.9°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).

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Average pressure in December
Mar-Mac, NC

Average pressure in December - Mar-Mac, NC
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in December
Mar-Mac, NC

Average wind speed in December - Mar-Mac, NC
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in December
Mar-Mac, NC

Average humidity in December - Mar-Mac, NC
  • Average humidity in December: 76%

The months with the highest relative humidity are May, August and September (78%).
The month with the lowest relative humidity is January (73%).

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Average rainfall in December
Mar-Mac, NC

Average rainfall in December - Mar-Mac, NC
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (1.81").

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Average rainfall days in December
Mar-Mac, NC

Average rainfall days in December - Mar-Mac, NC
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.1 days).

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Average snowfall in December
Mar-Mac, NC

Average snowfall in December - Mar-Mac, NC
  • Average snowfall in December: 0.28"

The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Mar-Mac, NC

Average snowfall days in December - Mar-Mac, NC
  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is January (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Mar-Mac, NC

Average daylight in December / Average sunshine in December - Mar-Mac, 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 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).

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Average sunshine days in December
Mar-Mac, NC

Average sunshine days in December - Mar-Mac, NC
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (9.4 days).

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Average UV index in December
Mar-Mac, NC

Average UV index in December - Mar-Mac, NC
  • Average UV index in December: 3

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in December
Mar-Mac, NC

Average cloud cover in December - Mar-Mac, NC
  • Average cloud cover in December: 41

The months with the most cloud cover are February and March (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 32).

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Average visibility in December
Mar-Mac, NC

Average visibility in December - Mar-Mac, 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).

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Mar-Mac, North Carolina, USA

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