December weather forecast
Flatfork, WV

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Weather in December

The first month of the winter, December, is also a frosty month in Flatfork, West Virginia, with an average temperature varying between 43.2°F (6.2°C) and 31.6°F (-0.2°C).

Temperature

The transition into December involves a decrease in the average high-temperature, falling from a cool 52.3°F (11.3°C) in November to a chilly 43.2°F (6.2°C). Flatfork registers a consistent average low-temperature of 31.6°F (-0.2°C) during December.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Flatfork, during December, the rain falls for 13.6 days and regularly aggregates up to 3.27" (83mm) of precipitation. In Flatfork, during the entire year, the rain falls for 186.1 days and collects up to 36.3" (922mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Flatfork, in December, snow falls for 10.1 days, with typically accumulated 3.86" (98mm) of snow. In Flatfork, during the entire year, snow falls for 46.8 days and aggregates up to 20.04" (509mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:25 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:14 pm EST.

Sunshine

In Flatfork, the average sunshine in December is 4h.

UV index

January, February 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 minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. To guard against the harmful effects of the Sun, minimize exposure during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

In December, the average high-temperature and low-temperature are 43.2°F (6.2°C) and 31.6°F (-0.2°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in August is evaluated at 93.2°F (34°C).

What is the average humidity in December?

In Flatfork, the average relative humidity in December is 81%.

How much does it rain in December?

In Flatfork, in December, during 13.6 rainfall days, 3.27" (83mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Flatfork, during December, snow falls for 10.1 days and regularly aggregates up to 3.86" (98mm) of snow.

What is the month with the shortest days in Flatfork?

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

What is the average length of the day in December?

In Flatfork, the average day length in December is 9h and 31min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:25 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:14 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 4h.

What is the month with the lowest UV index?

The months with the lowest UV index are January, February 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 in Flatfork is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to 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
Flatfork, WV

Average temperature in December - Flatfork, WV
  • Average high temperature in December: 43.2°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in December: 31.6°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in December
Flatfork, WV

Average pressure in December - Flatfork, WV
  • 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
Flatfork, WV

Average wind speed in December - Flatfork, WV
  • Average wind speed in December: 6.2mph

The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity in December
Flatfork, WV

Average humidity in December - Flatfork, WV
  • Average humidity in December: 81%

The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are June and August (76%).

Average rainfall in December
Flatfork, WV

Average rainfall in December - Flatfork, WV
  • Average rainfall in December: 3.27"

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days in December
Flatfork, WV

Average rainfall days in December - Flatfork, WV
  • Average rainfall days in December: 13.6 days

The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is November (11.5 days).

Average snowfall in December
Flatfork, WV

Average snowfall in December - Flatfork, WV
  • Average snowfall in December: 3.86"

The month with the highest snowfall is January (5.39").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Flatfork, WV

Average snowfall days in December - Flatfork, WV
  • Average snowfall days in December: 10.1 days

The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Flatfork, WV

Average daylight in December / Average sunshine in December - Flatfork, WV
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in December
Flatfork, WV

Average sunshine days in December - Flatfork, WV
  • Average sunshine days in December: 10.8 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (7.9 days).

Average UV index in December
Flatfork, WV

Average UV index in December - Flatfork, WV
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Flatfork, WV

Average cloud cover in December - Flatfork, WV
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Flatfork, WV

Average visibility in December - Flatfork, WV
  • Average visibility in December: 5mi

The months with the highest visibility are April and November (6mi).
The month with the lowest visibility is January (4mi).

Flatfork, West Virginia, USA

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