December weather forecastCharles City, VA

December

Weather in December

December, the first month of the winter in Charles City, is still a cool month, with an average temperature varying between 35.8°F (2.1°C) and 50.2°F (10.1°C).

Temperature

December ushers in a minute temperature change, with average high-temperatures reducing from November's mild 57.7°F (14.3°C) to a fresh 50.2°F (10.1°C). Charles City experiences a steady low-temperature of 35.8°F (2.1°C) throughout December.

Humidity

December is the most humid month, with an average relative humidity of 79%.

Rainfall

In Charles City, during December, the rain falls for 11.5 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 166.1 rainfall days, and 33.27" (845mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Charles City, in December, snow falls for 1.5 days, with typically accumulated 0.91" (23mm) of snow. In Charles City, during the entire year, snow falls for 10.3 days and aggregates up to 5.71" (145mm) of snow.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:04 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:00 pm EST.

Sunshine

The average sunshine in December is 5.3h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

In December, the average high-temperature and low-temperature are 50.2°F (10.1°C) and 35.8°F (2.1°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 86°F (30°C).

December is the most humid month, with an average relative humidity of 79%.

In December, the average relative humidity is 79%.

In Charles City, in December, during 11.5 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

In Charles City, during December, snow falls for 1.5 days and regularly aggregates up to 0.91" (23mm) of snow.

December has the shortest days of the year, with an average of 9h and 36min of daylight.

In Charles City, the average day length in December is 9h and 38min.

On the first day of December, sunrise is at 7:04 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:00 pm EST.

The average sunshine duration in December is 5.3h.

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

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Charles City, VA

  • Average high temperature in December: 50.2°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in December: 35.8°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in December
Charles City, 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
Charles City, VA

  • Average wind speed in December: 6.1mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Charles City, VA

  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is July (73%).

Average rainfall in December
Charles City, VA

  • Average rainfall in December: 2.56"

The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in December
Charles City, VA

  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is May (18.4 days).
The months with the least rainy days are January and November (10.2 days).

Average snowfall in December
Charles City, VA

  • Average snowfall in December: 0.91"

The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Charles City, VA

  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is February (3.3 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
Charles City, 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 18min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in December
Charles City, VA

  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.9 days).

Average UV index in December
Charles City, 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
Charles City, VA

  • Average cloud cover in December: 43

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in December
Charles City, 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).