December weather forecastWillis Wharf, VA

December

Weather in December

The first month of the winter, December, is also a frosty month in Willis Wharf, Virginia, with an average temperature fluctuating between 49.1°F (9.5°C) and 42.1°F (5.6°C).

Temperature

The beginning of December brings a minor change in the average high-temperature, shifting from a moderate 56.3°F (13.5°C) in November to a frosty 49.1°F (9.5°C). December nights witness a slight temperature decrease, averaging at an icy 42.1°F (5.6°C).

Humidity

The average relative humidity in December is 76%.

Rainfall

In Willis Wharf, Virginia, during December, the rain falls for 12.3 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Willis Wharf, during the entire year, the rain falls for 161.5 days and collects up to 26.06" (662mm) of precipitation.

Snowfall

January through March and December are months with snowfall in Willis Wharf. December is the first month it typically snows in Willis Wharf. Throughout December, in the average 1.3 snowfall days, it receives 0.12" (3mm) of snow. In Willis Wharf, during the entire year, snow falls for 5.6 days and aggregates up to 0.87" (22mm) of snow.

Daylight

The month with the shortest days in Willis Wharf is December, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 6:59 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:55 pm EST.

Sunshine

The average sunshine in December is 5.4h.

UV index

In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 3 in December translates into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During December, Willis Wharf experiences an average high-temperature of 49.1°F (9.5°C) and a low-temperature of 42.1°F (5.6°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 86°F (30°C).

The average relative humidity in December is 76%.

In Willis Wharf, during December, the rain falls for 12.3 days and regularly aggregates up to 1.81" (46mm) of precipitation.

December is the first month it typically snows in Willis Wharf, Virginia. Throughout December, in the average 1.3 snowfall days, it receives 0.12" (3mm) of snow.

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

In Willis Wharf, the average day length in December is 9h and 38min.

On the first day of December in Willis Wharf, Virginia, sunrise is at 6:59 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:55 pm EST.

In December, the average sunshine duration in Willis Wharf is 5.4h.

The average daily maximum UV index in December in Willis Wharf is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
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
Willis Wharf, VA

  • Average high temperature in December: 49.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (43.5°F).

  • Average low temperature in December: 42.1°F

The month with the highest average low temperature is July (75.9°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).

Average pressure in December
Willis Wharf, VA

  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Willis Wharf, VA

  • Average wind speed in December: 12.6mph

The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is August (9.5mph).

Average humidity in December
Willis Wharf, VA

  • Average humidity in December: 76%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).

Average rainfall in December
Willis Wharf, VA

  • Average rainfall in December: 1.81"

The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is November (1.54").

Average rainfall days in December
Willis Wharf, VA

  • Average rainfall days in December: 12.3 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in December
Willis Wharf, VA

  • Average snowfall in December: 0.12"

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Willis Wharf, VA

  • Average snowfall days in December: 1.3 days

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Willis Wharf, VA

  • Average daylight in December: 9h and 36min

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 24min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in December
Willis Wharf, VA

  • Average sunshine days in December: 16.4 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (10.8 days).

Average UV index in December
Willis Wharf, VA

  • Average UV index in December: 3

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

Average cloud cover in December
Willis Wharf, VA

  • Average cloud cover in December: 41

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in December
Willis Wharf, 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).