December weather forecast
Marion, VA

Share

Weather in December

The first month of the winter, December, is still a chilly month in Marion, Virginia, with an average temperature fluctuating between 43.9°F (6.6°C) and 30.2°F (-1°C).

Temperature

The start of December involves a subtle temperature drop, shifting from a cool 51.8°F (11°C) in November to a frosty 43.9°F (6.6°C). An average temperature of 30.2°F (-1°C) is recorded during the nights in December.

Humidity

In December, the average relative humidity is 80%.

Rainfall

In Marion, during December, the rain falls for 11.9 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Marion, during the entire year, the rain falls for 191 days and collects up to 30.87" (784mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 7.2 days and typically aggregates up to 4.8" (122mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 7:20 am and sunset at 5:09 pm. On the last day of December, sunrise is at 7:38 am and sunset at 5:20 pm EST.

Sunshine

In Marion, the average sunshine in December is 4.9h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 2 during December leads to these instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

During December, Marion experiences an average high-temperature of 43.9°F (6.6°C) and a low-temperature of 30.2°F (-1°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in July is computed to be 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 80%.

How much does it rain in December?

In Marion, in December, during 11.9 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When does it snow the most?

December is the month with the most snowfall. Snow falls for 7.2 days and accumulates 4.8" (122mm) of snow.

How many days does it snow in December?

In Marion, Virginia, in December, during 7.2 snowfall days, 4.8" (122mm) of snow is typically accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

In December, the average day length is 9h and 41min.

What time are sunrise and sunset in December in Marion?

On the first day of December, sunrise is at 7:20 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:20 pm EST.

How many hours of sunshine does Marion have in December?

In December, the average sunshine duration is 4.9h.

When is the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Marion, VA

Average temperature in December - Marion, VA
  • Average high temperature in December: 43.9°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 30.2°F

The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in December
Marion, VA

Average pressure in December - Marion, 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 (29.99"Hg).

Average wind speed in December
Marion, VA

Average wind speed in December - Marion, VA
  • Average wind speed in December: 7.3mph

The windiest months (with the highest average wind speed) are January and February (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in December
Marion, VA

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

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (77%).

Average rainfall in December
Marion, VA

Average rainfall in December - Marion, VA
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in December
Marion, VA

Average rainfall days in December - Marion, VA
  • Average rainfall days in December: 11.9 days

The month with the highest number of rainy days is July (22 days).
The month with the least rainy days is November (10.8 days).

Average snowfall in December
Marion, VA

Average snowfall in December - Marion, VA
  • Average snowfall in December: 4.8"

The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Marion, VA

Average snowfall days in December - Marion, VA
  • Average snowfall days in December: 7.2 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in December
Marion, VA

Average sunshine days in December - Marion, VA
  • Average sunshine days in December: 13.3 days

The month with the most sunshine days is November (15.6 days).
The month with the least sunshine days is May (6.7 days).

Average UV index in December
Marion, VA

Average UV index in December - Marion, VA
  • Average UV index in December: 2

The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Marion, VA

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

The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are June, July and August (Cloud cover 40).

Average visibility in December
Marion, VA

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

The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (5mi).
The month with the lowest visibility is September (4mi).

Marion, Virginia, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location