December weather forecast
Westbriar, VA

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Weather in December

The first month of the winter, December, is still a chilly month in Westbriar, Virginia, with temperature in the range of an average high of 49.1°F (9.5°C) and an average low of 34.9°F (1.6°C).

Temperature

The arrival of December suggests a slight decrease in the average high-temperature, moving from a moderate 56.7°F (13.7°C) in November to a frosty 49.1°F (9.5°C). Westbriar, in December, experiences an average temperature of 34.9°F (1.6°C) at night.

Humidity

The most humid month is December, with an average relative humidity of 78%.

Rainfall

In December, the rain falls for 10.1 days. Throughout December, 1.93" (49mm) of precipitation is accumulated. Throughout the year, there are 151.1 rainfall days, and 26.22" (666mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Westbriar, in December, snow falls for 1.5 days, with typically accumulated 1.5" (38mm) of snow. In Westbriar, Virginia, during the entire year, snow falls for 10.5 days and aggregates up to 6.42" (163mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 7:07 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:25 am and sunset at 5:02 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 5.2h of sunshine.

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 low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature?

December temperatures vary between a high-temperature of 49.1°F (9.5°C) and a low-temperature of 34.9°F (1.6°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 86°F (30°C).

What is the most humid month?

The most humid month is December, with an average relative humidity of 78%.

What is the average humidity in December in Westbriar?

The average relative humidity in December is 78%.

How much does it rain in December?

In December, the rain falls for 10.1 days. Throughout December, 1.93" (49mm) of precipitation is accumulated.

How many days does it snow in December?

In Westbriar, in December, snow falls for 1.5 days, with typically accumulated 1.5" (38mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 36min of daylight.

How many hours of daylight does Westbriar have in December?

In Westbriar, Virginia, the average day length in December is 9h and 37min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:02 pm EST.

What is the month with the least sunshine in Westbriar?

With an average of 5.2h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

In Westbriar, the average sunshine duration in December is 5.2h.

When is the lowest UV index?

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

How high is the UV index in December?

In Westbriar, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Westbriar, VA

Average temperature in December - Westbriar, VA
  • Average high temperature in December: 49.1°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (44.2°F).

  • Average low temperature in December: 34.9°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure in December
Westbriar, VA

Average pressure in December - Westbriar, VA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Westbriar, VA

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

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in December
Westbriar, VA

Average humidity in December - Westbriar, VA
  • Average humidity in December: 78%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (68%).

Average rainfall in December
Westbriar, VA

Average rainfall in December - Westbriar, VA
  • Average rainfall in December: 1.93"

The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in December
Westbriar, VA

Average rainfall days in December - Westbriar, VA
  • Average rainfall days in December: 10.1 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in December
Westbriar, VA

Average snowfall in December - Westbriar, VA
  • Average snowfall in December: 1.5"

The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Westbriar, VA

Average snowfall days in December - Westbriar, VA
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is February (3.5 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
Westbriar, VA

Average daylight in December / Average sunshine in December - Westbriar, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in December
Westbriar, VA

Average sunshine days in December - Westbriar, VA
  • Average sunshine days in December: 19.2 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.9 days).

Average UV index in December
Westbriar, VA

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Westbriar, VA

Average cloud cover in December - Westbriar, VA
  • Average cloud cover in December: 44

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Westbriar, VA

Average visibility in December - Westbriar, VA
  • Average visibility in December: 6mi

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

Westbriar, Virginia, USA

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