December weather forecast
Raleigh, NC

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The George Washington statue overlooking the city buildings of Raleigh, North Carolina
The George Washington statue overlooking the city buildings of Raleigh, North Carolina

Weather in December

December brings the year to a close in Raleigh with cold winter days and longer nights. Patchy clouds traverse the sky with regular cloud coverage at 41%, the highest of the year, fostering cooler weather. Despite the decrease in the maximum temperature down to a crisp 52.7°F (11.5°C), none of the recorded parameters reach any extreme. Maintaining optimum indoor heating becomes essential, considering the persistent cold. A white Christmas, while not guaranteed, remains a possibility evident from the negligible snowfall.

Temperature

A minor decrease in the average high-temperature is observed in Raleigh during December, shifting from a mild 59.7°F (15.4°C) in November to a fresh 52.7°F (11.5°C). An average low-temperature of 38.3°F (3.5°C) is expected in Raleigh during December.

Humidity

May, September and December, with an average relative humidity of 76%, are the most humid months.

Rainfall

In Raleigh, during December, the rain falls for 11.1 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 163.2 rainfall days, and 32.2" (818mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Raleigh are January through March, November and December. In Raleigh, in December, during 0.6 snowfall days, 0.39" (10mm) of snow is typically accumulated. In Raleigh, during the entire year, snow falls for 5.7 days and aggregates up to 3.82" (97mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 7:06 am and sunset at 5:01 pm. On the last day of December, in Raleigh, sunrise is at 7:24 am and sunset at 5:11 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 5.5h of sunshine.

UV index

In Raleigh, North Carolina, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 3 in December converts into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Frequently asked questions

What are December temperatures in Raleigh?

In Raleigh, 52.7°F (11.5°C) is the average high-temperature and 38.3°F (3.5°C) is the average low-temperature during December. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in September is calculated to be 87.8°F (31°C).

What is the most humid month in Raleigh?

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

What is the average humidity in December in Raleigh?

The average relative humidity in December in Raleigh is 76%.

How much does it rain in Raleigh in December?

In Raleigh, in December, during 11.1 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

How many days does it snow in December in Raleigh?

In December, in Raleigh, it is snowing for 0.6 days. Throughout December, 0.39" (10mm) of snow is accumulated.

What is the month with the shortest days in Raleigh?

December has the shortest days of the year in Raleigh, North Carolina, with an average of 9h and 48min of daylight.

How many hours of daylight does Raleigh have in December?

In Raleigh, North Carolina, the average day length in December is 9h and 47min.

When is the sunrise / sunset in December in Raleigh?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 5:01 pm. On the last day of the month, in Raleigh, North Carolina, sunrise is at 7:24 am and sunset at 5:11 pm EST.

What is the month with the least sunshine in Raleigh?

With an average of 5.5h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December in Raleigh?

In December, the average sunshine duration is 5.5h.

What is the UV index intensity in December in Raleigh?

In Raleigh, North Carolina, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from 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
Raleigh, NC

Average temperature in December - Raleigh, NC
  • Average high temperature in December: 52.7°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in December: 38.3°F

The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).

Average pressure in December
Raleigh, NC

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

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Raleigh, NC

Average wind speed in December - Raleigh, NC
  • Average wind speed in December: 6.7mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Raleigh, NC

Average humidity in December - Raleigh, NC
  • Average humidity in December: 76%

The months with the highest relative humidity are May, September and December (76%).
The months with the lowest relative humidity are January, March, April, June, July and November (73%).

Average rainfall in December
Raleigh, NC

Average rainfall in December - Raleigh, NC
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is October (2.13").

Average rainfall days in December
Raleigh, NC

Average rainfall days in December - Raleigh, NC
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in December
Raleigh, NC

Average snowfall in December - Raleigh, NC
  • Average snowfall in December: 0.39"

The month with the highest snowfall is January (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Raleigh, NC

Average snowfall days in December - Raleigh, NC
  • Average snowfall days in December: 0.6 days

The month with the highest number of snowfall days is February (2.1 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
Raleigh, NC

Average daylight in December / Average sunshine in December - Raleigh, 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 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in December
Raleigh, NC

Average sunshine days in December - Raleigh, NC
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.5 days).

Average UV index in December
Raleigh, NC

Average UV index in December - Raleigh, 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).

Average cloud cover in December
Raleigh, NC

Average cloud cover in December - Raleigh, NC
  • Average cloud cover in December: 41

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in December
Raleigh, NC

Average visibility in December - Raleigh, 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).

Raleigh, North Carolina, USA

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