December weather forecast
Charles Town, WV

Share

Weather in December

December welcomes winter as temperatures drop sharply with lows around 30.7°F (-0.7°C), contrasting with November's mild cool. Snowfall consists of going up to 2.8" (71mm), embarking upon the arrival of a frosty season. Compared to its predecessor month, it has increased snowfall and reduced daylight hours. Nevertheless, December's chilly ambiance, frosty breaths, and snowy landscapes make Charles Town a perfect winter wonderland, rounding out the year in a charismatic, freezing style.

Temperature

The arrival of December in Charles Town, West Virginia, signals a subtle shift in temperature, down from a fresh 52.2°F (11.2°C) in November to a frosty 43.3°F (6.3°C). During the month of December, the temperature in Charles Town, West Virginia, generally drops to a low average of 30.7°F (-0.7°C).

Humidity

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

Rainfall

In Charles Town, in December, during 10.8 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Charles Town, West Virginia, 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 Charles Town. In Charles Town, West Virginia, during December, snow falls for 4.3 days and regularly aggregates up to 2.8" (71mm) of snow. In Charles Town, West Virginia, during the entire year, snow falls for 23.9 days and aggregates up to 15.55" (395mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year in Charles Town.
On the first day of December in Charles Town, sunrise is at 7:12 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:58 pm EST.

Sunshine

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

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 2 in December translates into this advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
[Resources]

Frequently asked questions

Is it cold in Charles Town during December?

During December, Charles Town experiences an average high-temperature of 43.3°F (6.3°C) and a low-temperature of 30.7°F (-0.7°C). In August, 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 appraised at 91.4°F (33°C).

What are the most humid months in Charles Town?

May, October and December, with an average relative humidity of 78%, are most humid months in Charles Town.

What is the average humidity in December in Charles Town?

The average relative humidity in December in Charles Town is 78%.

How much does it rain in Charles Town in December?

In Charles Town, in December, during 10.8 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

How many days does it snow in December in Charles Town?

In Charles Town, 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 in Charles Town?

With an average of 9h and 30min of daylight, December has the shortest days of the year in Charles Town, West Virginia.

What is the average length of the day in December in Charles Town?

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

What time are sunrise and sunset in December in Charles Town?

In December, on the first day of the month, sunrise is at 7:12 am and sunset at 4:48 pm. On the last day of the month, in Charles Town, sunrise is at 7:31 am and sunset at 4:58 pm EST.

What are the months with the least sunshine in Charles Town?

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

How many hours of sunshine does Charles Town have in December?

In Charles Town, the average sunshine duration in December is 5.1h.

When is the lowest UV index in Charles Town?

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

What is the UV index intensity in December in Charles Town?

The average daily maximum UV index in December in Charles Town, West Virginia, is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Charles Town, WV

Average temperature in December - Charles Town, WV
  • 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).

[Resources]

Average pressure in December
Charles Town, WV

Average pressure in December - Charles Town, WV
  • 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).

[Resources]

Average wind speed in December
Charles Town, WV

Average wind speed in December - Charles Town, WV
  • 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).

[Resources]

Average humidity in December
Charles Town, WV

Average humidity in December - Charles Town, WV
  • 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%).

[Resources]

Average rainfall in December
Charles Town, WV

Average rainfall in December - Charles Town, WV
  • 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").

[Resources]

Average rainfall days in December
Charles Town, WV

Average rainfall days in December - Charles Town, WV
  • 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).

[Resources]

Average snowfall in December
Charles Town, WV

Average snowfall in December - Charles Town, WV
  • 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").

[Resources]

Average snowfall days in December
Charles Town, WV

Average snowfall days in December - Charles Town, WV
  • 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).

[Resources]

Average daylight in December /
Average sunshine in December
Charles Town, WV

Average daylight in December / Average sunshine in December - Charles Town, WV
  • 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).

[Resources]

Average sunshine days in December
Charles Town, WV

Average sunshine days in December - Charles Town, WV
  • 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).

[Resources]

Average UV index in December
Charles Town, WV

Average UV index in December - Charles Town, WV
  • 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).

[Resources]

Average cloud cover in December
Charles Town, WV

Average cloud cover in December - Charles Town, WV
  • 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).

[Resources]

Average visibility in December
Charles Town, WV

Average visibility in December - Charles Town, WV
  • 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).

[Resources]

Charles Town, West Virginia, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location