December weather forecast
Mart, VA

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Weather in December

The first month of the winter, December, is still a chilly month in Mart, Virginia, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 45°F (7.2°C).

Temperature

December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a fresh 53.2°F (11.8°C) in November to a chilly 45°F (7.2°C). The low-temperature averages to an icy 32.4°F (0.2°C) during the nights of December.

Humidity

The average relative humidity in December is 80%.

Rainfall

In December, the rain falls for 10.8 days. Throughout December, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 169.1 rainfall days, and 32.09" (815mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Mart, in December, during 6.7 snowfall days, 4.61" (117mm) of snow is typically accumulated. In Mart, during the entire year, snow falls for 36.4 days and aggregates up to 22.36" (568mm) of snow.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:24 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:22 pm EST.

Sunshine

In December, the average sunshine is 4.6h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 2 suggests this advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Around midday, solar radiation is most harmful; hence, exposure should be limited. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Frequently asked questions

What is the average December temperature?

In December, the average high-temperature and low-temperature are 45°F (7.2°C) and 32.4°F (0.2°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is appraised at 89.6°F (32°C).

What is the average humidity in December?

In Mart, the average relative humidity in December is 80%.

How much does it rain in December?

In Mart, during December, the rain falls for 10.8 days and regularly aggregates up to 2.8" (71mm) of precipitation.

How many days does it snow in December?

In December, it is snowing for 6.7 days. Throughout December, 4.61" (117mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 42min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Mart, the average day length in December is 9h and 39min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:24 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:22 pm EST.

How many hours of sunshine does Mart have in December?

The average sunshine duration in December is 4.6h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In Mart, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to 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
Mart, VA

Average temperature in December - Mart, VA
  • Average high temperature in December: 45°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in December: 32.4°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in December
Mart, VA

Average pressure in December - Mart, VA
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in December
Mart, VA

Average wind speed in December - Mart, VA
  • Average wind speed in December: 6mph

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

Average humidity in December
Mart, VA

Average humidity in December - Mart, VA
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and November (76%).

Average rainfall in December
Mart, VA

Average rainfall in December - Mart, VA
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is February (3.7").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in December
Mart, VA

Average rainfall days in December - Mart, VA
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in December
Mart, VA

Average snowfall in December - Mart, VA
  • Average snowfall in December: 4.61"

The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Mart, VA

Average snowfall days in December - Mart, VA
  • Average snowfall days in December: 6.7 days

The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Mart, 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 42min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in December
Mart, VA

Average sunshine days in December - Mart, VA
  • Average sunshine days in December: 15.7 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in December
Mart, VA

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

Average cloud cover in December
Mart, VA

Average cloud cover in December - Mart, VA
  • Average cloud cover in December: 55

The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Mart, VA

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

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

Mart, Virginia, USA

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