December weather forecastRadium, VA

December

Weather in December

The first month of the winter, December, is still a cool month in Radium, Virginia, with an average temperature fluctuating between 36.7°F (2.6°C) and 50.9°F (10.5°C).

Temperature

In the transition to December, Radium observes a minor drop in the average high-temperature, shifting from a moderate 58.1°F (14.5°C) in November to a cool 50.9°F (10.5°C). Throughout December nights, Radium experiences a consistent temperature average of 36.7°F (2.6°C).

Humidity

In Radium, the average relative humidity in December is 78%.

Rainfall

In Radium, during December, the rain falls for 11.6 days and regularly aggregates up to 2.76" (70mm) of precipitation. Throughout the year, there are 167.6 rainfall days, and 32.09" (815mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In December, it is snowing for 0.8 days. Throughout December, 0.51" (13mm) of snow is accumulated. In Radium, during the entire year, snow falls for 6.5 days and aggregates up to 4.06" (103mm) 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 7:05 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:04 pm EST.

Sunshine

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

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature in Radium during December is 50.9°F (10.5°C) and the low-temperature is 36.7°F (2.6°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 86°F (30°C).

The average relative humidity in December is 78%.

In Radium, in December, it is raining for 11.6 days, with typically 2.76" (70mm) of accumulated precipitation.

In Radium, in December, snow falls for 0.8 days, with typically accumulated 0.51" (13mm) of snow.

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

In Radium, the average day length in December is 9h and 42min.

On the first day of December, sunrise is at 7:05 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:04 pm EST.

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

In December, the average sunshine duration is 5.5h.

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

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Radium, VA

  • Average high temperature in December: 50.9°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.2°F).

  • Average low temperature in December: 36.7°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).

Average pressure in December
Radium, VA

  • 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).

Average wind speed in December
Radium, VA

  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in December
Radium, VA

  • Average humidity in December: 78%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January, February, April, July and November (74%).

Average rainfall in December
Radium, VA

  • Average rainfall in December: 2.76"

The wettest month (with the highest rainfall) is August (3.35").
The driest month (with the least rainfall) is October (1.89").

Average rainfall days in December
Radium, VA

  • Average rainfall days in December: 11.6 days

The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is November (10.1 days).

Average snowfall in December
Radium, VA

  • Average snowfall in December: 0.51"

The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Radium, VA

  • Average snowfall days in December: 0.8 days

The months with the highest number of snowfall days are January and February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

  • Average daylight in December: 9h and 42min

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: 5h and 30min

The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).

Average sunshine days in December
Radium, VA

  • Average sunshine days in December: 17.8 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in December
Radium, 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 and December (UV index 2).

Average cloud cover in December
Radium, VA

  • Average cloud cover in December: 41

The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 31).

Average visibility in December
Radium, VA

  • 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).