December weather forecast
Roanoke, VA

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Stunning dawn in the city of Roanoke, Virginia
Stunning dawn in the city of Roanoke, Virginia

Weather in December

December engulfs Roanoke in the full swing of winter. The temperatures drastically dip to a night-time low of 31.8°F (-0.1°C), marking the return of the chilly climatic conditions. The city gets adorned in a white cloak as snowfall resumes, painting the landscapes into stunning scenes of winter beauty. Drastic reduction in daylight hours adds to the typical winter atmosphere, casting long shadows and creating picturesque winter evenings. With this, Roanoke concludes the year on a cold note, silently awaiting January's first rays.

Temperature

The arrival of December in Roanoke corresponds with a minor reduction in the average high-temperature, down from November's fresh 53.8°F (12.1°C) to a frosty 45.9°F (7.7°C). Roanoke experiences an average nighttime temperature of 31.8°F (-0.1°C) in the month of December.

Humidity

The months with the highest humidity are May, September and December, with an average relative humidity of 77%.

Rainfall

In Roanoke, during December, the rain falls for 8.6 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Roanoke, during the entire year, the rain falls for 145.5 days and collects up to 25.04" (636mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In December, in Roanoke, it is snowing for 2.2 days. Throughout December, 2.72" (69mm) of snow is accumulated. Throughout the year, in Roanoke, Virginia, there are 12.9 snowfall days, and 11.42" (290mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 7:15 am and sunset at 5:02 pm. On the last day of December, sunrise is at 7:33 am and sunset at 5:12 pm EST.

Sunshine

In Roanoke, the average sunshine in December is 5.5h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

What is the usual temperature for Roanoke in December?

December temperatures vary between a high-temperature of 45.9°F (7.7°C) and a low-temperature of 31.8°F (-0.1°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is computed to be 93.2°F (34°C).

What are the most humid months in Roanoke?

The months with the highest humidity in Roanoke, Virginia, are May, September and December, with an average relative humidity of 77%.

What is the average humidity in December in Roanoke?

The average relative humidity in December in Roanoke is 77%.

How many days does it rain in December in Roanoke?

In Roanoke, Virginia, in December, during 8.6 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

How many days does it snow in December in Roanoke?

In December, in Roanoke, Virginia, it is snowing for 2.2 days. Throughout December, 2.72" (69mm) of snow is accumulated.

What is the month with the shortest days in Roanoke?

With an average of 9h and 36min of daylight, December has the shortest days of the year.

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

The average day length in December in Roanoke is 9h and 39min.

When are sunrise and sunset in December in Roanoke?

In December, on the first day of the month, sunrise is at 7:15 am and sunset at 5:02 pm. On the last day of the month, in Roanoke, sunrise is at 7:33 am and sunset at 5:12 pm EST.

How many hours of sunshine does Roanoke have in December?

The average sunshine duration in December in Roanoke, Virginia, is 5.5h.

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

The months with the lowest UV index in Roanoke, Virginia, are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Roanoke?

In Roanoke, Virginia, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Roanoke, VA

Average temperature in December - Roanoke, VA
  • Average high temperature in December: 45.9°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (41.2°F).

  • Average low temperature in December: 31.8°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in December
Roanoke, VA

Average pressure in December - Roanoke, VA
  • 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).

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Average wind speed in December
Roanoke, VA

Average wind speed in December - Roanoke, VA
  • Average wind speed in December: 5.9mph

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

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Average humidity in December
Roanoke, VA

Average humidity in December - Roanoke, VA
  • Average humidity in December: 77%

The months with the highest relative humidity are May, September and December (77%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in December
Roanoke, VA

Average rainfall in December - Roanoke, VA
  • Average rainfall in December: 2.17"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in December
Roanoke, VA

Average rainfall days in December - Roanoke, VA
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (7.6 days).

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Average snowfall in December
Roanoke, VA

Average snowfall in December - Roanoke, VA
  • Average snowfall in December: 2.72"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Roanoke, VA

Average snowfall days in December - Roanoke, VA
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Roanoke, VA

Average daylight in December / Average sunshine in December - Roanoke, VA
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 5h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

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Average sunshine days in December
Roanoke, VA

Average sunshine days in December - Roanoke, VA
  • Average sunshine days in December: 20 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is May (11.6 days).

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Average UV index in December
Roanoke, VA

Average UV index in December - Roanoke, VA
  • 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, February, November and December (UV index 2).

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Average cloud cover in December
Roanoke, VA

Average cloud cover in December - Roanoke, VA
  • Average cloud cover in December: 42

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 31).

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Average visibility in December
Roanoke, VA

Average visibility in December - Roanoke, VA
  • Average visibility in December: 5mi

The months with the highest visibility are June, July and November (6mi).
The months with the lowest visibility are January, February, March, April, May, August, September, October and December (5mi).

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Roanoke, Virginia, USA

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