December weather forecastBlairs, VA

December

Weather in December

The first month of the winter, December, is also a frosty month in Blairs, Virginia, with an average temperature varying between 49.8°F (9.9°C) and 35.4°F (1.9°C).

Temperature

The shift from November to December includes a small decrease in the average high-temperature, from a moderate 57.4°F (14.1°C) to a frosty 49.8°F (9.9°C). Blairs's average low-temperature for the month of December records at a cold 35.4°F (1.9°C).

Humidity

With an average relative humidity of 76%, December is the most humid month.

Rainfall

In Blairs, in December, it is raining for 10.3 days, with typically 2.87" (73mm) of accumulated precipitation. In Blairs, during the entire year, the rain falls for 154.5 days and collects up to 29.17" (741mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. The months with the most snowfall are January and December, with an average 2.17" (55mm) of accumulated 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 7:11 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:29 am and sunset at 5:11 pm EST.

Sunshine

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

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: The UV index of 2 during December leads to these advisories:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Blairs, 49.8°F (9.9°C) is the average high-temperature and 35.4°F (1.9°C) is the average low-temperature during December. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

The most humid month in Blairs, Virginia, is December, with an average relative humidity of 76%.

In December, the average relative humidity is 76%.

In Blairs, in December, it is raining for 10.3 days, with typically 2.87" (73mm) of accumulated precipitation.

The months with the most snowfall are January and December, with an average 2.17" (55mm) of accumulated snow.

In Blairs, in December, snow falls for 1.3 days, with typically accumulated 2.17" (55mm) of snow.

The month with the shortest days is December, with an average of 9h and 42min of daylight.

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

On the first day of December, sunrise is at 7:11 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:11 pm EST.

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

In December, the average sunshine duration is 5.5h.

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

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

57.4°F

49.8°F

45.5°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.8mph

7mph

7.6mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

19.2

17.9

Average UV index

Average cloud cover

33%

40%

Average visibility

6mi

Average temperature in December
Blairs, VA

Average high temperature in December: 49.8°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (45.5°F).

Average low temperature in December: 35.4°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in December
Blairs, 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 (29.97"Hg).

Average wind speed in December
Blairs, VA

Average wind speed in December: 6.4mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in December
Blairs, VA

Average humidity in December: 76%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).

Average rainfall in December
Blairs, VA

Average rainfall in December: 2.87"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
Blairs, VA

Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in December
Blairs, VA

Average snowfall in December: 2.17"

The months with the highest snowfall are January and December (2.17").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Blairs, VA

Average snowfall days in December: 1.3 days

The month with the highest number of snowfall days is February (3.2 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
Blairs, 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 and December (Average sunshine: 5h and 30min).

Average sunshine days in December
Blairs, VA

Average sunshine days in December: 19 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (12.4 days).

Average UV index in December
Blairs, 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
Blairs, VA

Average cloud cover in December: 40

The months with the most cloud cover are February and March (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in December
Blairs, 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).