December weather forecast
Keys Gap, VA

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Weather in December

The first month of the winter, December, is still a chilly month in Keys Gap, Virginia, with temperature in the range of an average low of 30.7°F (-0.7°C) and an average high of 43.3°F (6.3°C).

Temperature

With the arrival of December, Keys Gap notices a mild change in the average high-temperature, sliding from November's fresh 52.2°F (11.2°C) to a chilly 43.3°F (6.3°C). During December, the average low-temperature in Keys Gap is a subzero cold 30.7°F (-0.7°C).

Humidity

The months with the highest humidity are May, October and December, with an average relative humidity of 78%.

Rainfall

In Keys Gap, in December, during 10.8 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Keys Gap, during the entire year, the rain falls for 162.1 days and collects up to 30.59" (777mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Keys Gap, in December, during 4.3 snowfall days, 2.8" (71mm) of snow is typically accumulated. Throughout the year, there are 23.9 snowfall days, and 15.55" (395mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:12 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:58 pm EST.

Sunshine

The months with the least sunshine in Keys Gap, Virginia, are January, February and December, with an average of 5.1h of sunshine.

UV index

The months with the lowest UV index in Keys Gap 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 exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 2 during December translates into the following guidance:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold?

The high-temperature, in December, in Keys Gap, is 43.3°F (6.3°C), while the low-temperature averages to 30.7°F (-0.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is calculated to be 91.4°F (33°C).

What is the most humid month?

The months with the highest humidity are May, October and December, with an average relative humidity of 78%.

What is the average humidity in December?

In December, the average relative humidity is 78%.

How many days does it rain in December?

In December, in Keys Gap, the rain falls for 10.8 days. Throughout December, 2.52" (64mm) of precipitation is accumulated.

How much does it snow in December?

In Keys Gap, during December, snow falls for 4.3 days and regularly aggregates up to 2.8" (71mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

How many hours of daylight does Keys Gap have in December?

In December, the average day length is 9h and 28min.

When is the sunrise / sunset in December in Keys Gap?

On the first day of December in Keys Gap, sunrise is at 7:12 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:58 pm EST.

What are the months with the least sunshine?

The months with the least sunshine are January, February and December, with an average of 5.1h of sunshine.

How long on average sun shines in December?

In Keys Gap, the average sunshine duration in December is 5.1h.

What are the months with the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Keys Gap, VA

Average temperature in December - Keys Gap, VA
  • Average high temperature in December: 43.3°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 30.7°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

Average pressure in December
Keys Gap, VA

Average pressure in December - Keys Gap, VA
  • Average pressure in December: 30.11"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
Keys Gap, VA

Average wind speed in December - Keys Gap, VA
  • Average wind speed in December: 6.5mph

The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in December
Keys Gap, VA

Average humidity in December - Keys Gap, VA
  • Average humidity in December: 78%

The months with the highest relative humidity are May, October and December (78%).
The month with the lowest relative humidity is July (73%).

Average rainfall in December
Keys Gap, VA

Average rainfall in December - Keys Gap, VA
  • Average rainfall in December: 2.52"

The wettest months (with the highest rainfall) are May, July and August (3.15").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in December
Keys Gap, VA

Average rainfall days in December - Keys Gap, VA
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.2 days).

Average snowfall in December
Keys Gap, VA

Average snowfall in December - Keys Gap, VA
  • Average snowfall in December: 2.8"

The month with the highest snowfall is January (4.17").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Keys Gap, VA

Average snowfall days in December - Keys Gap, VA
  • Average snowfall days in December: 4.3 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Keys Gap, VA

Average daylight in December / Average sunshine in December - Keys Gap, VA
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

Average sunshine days in December
Keys Gap, VA

Average sunshine days in December - Keys Gap, VA
  • Average sunshine days in December: 17 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in December
Keys Gap, VA

Average UV index in December - Keys Gap, 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, November and December (UV index 2).

Average cloud cover in December
Keys Gap, VA

Average cloud cover in December - Keys Gap, VA
  • Average cloud cover in December: 46

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in December
Keys Gap, VA

Average visibility in December - Keys Gap, VA
  • Average visibility in December: 6mi

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

Keys Gap, Virginia, USA

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