December weather forecast
Clarksburg, WV

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Beautiful cityscape of Clarksburg in West Virginia, with the dense tree cover and the dramatic landscape beyond
Beautiful cityscape of Clarksburg in West Virginia, with the dense tree cover and the dramatic landscape beyond

Weather in December

December's weather in Clarksburg brings along the harshest weather changes, turning the city into a winter wonderland. The fairytale ambiance is accentuated by substantial snowfall accumulation, at 5.35" (136mm), making it the month with most snow. The short days inspire decorative lights, evoking a festive spirit across the city. Visibility remains good, allowing residents to appreciate the cold, yet strikingly beautiful winter sceneries. This climatic shift marks the exciting end of the year and beckons a new one.

Temperature

As November transitions into December, Clarksburg sees a drop in the average high-temperature, transitioning from a fresh 50.9°F (10.5°C) to a cold 41.9°F (5.5°C). Clarksburg experiences an average low-temperature of 29.8°F (-1.2°C) in month of December.

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Clarksburg, in December, during 14 rainfall days, 3.35" (85mm) of precipitation is typically accumulated. In Clarksburg, West Virginia, during the entire year, the rain falls for 189.3 days and collects up to 36.97" (939mm) of precipitation.

Snowfall

Months with snowfall in Clarksburg are January through May, October through December. In Clarksburg, West Virginia, during December, snow falls for 11.9 days and regularly aggregates up to 5.35" (136mm) of snow. Throughout the year, in Clarksburg, West Virginia, there are 57.8 snowfall days, and 28.9" (734mm) 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 the month, sunrise is at 7:22 am and sunset at 4:58 pm. On the last day of December, sunrise is at 7:40 am and sunset at 5:08 pm EST.

Sunshine

In December, the average sunshine in Clarksburg is 3.8h.

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 of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

How cold is it in Clarksburg in December?

The high-temperature in Clarksburg, West Virginia, during December is 41.9°F (5.5°C) and the low-temperature is 29.8°F (-1.2°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 87.8°F (31°C).

What is the average humidity in December in Clarksburg?

In Clarksburg, the average relative humidity in December is 82%.

How much does it rain in Clarksburg in December?

In December, in Clarksburg, the rain falls for 14 days. Throughout December, 3.35" (85mm) of precipitation is accumulated.

How many days does it snow in December in Clarksburg?

In Clarksburg, in December, snow falls for 11.9 days, with typically accumulated 5.35" (136mm) of snow.

What is the month with the shortest days in Clarksburg?

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

How many hours of daylight does Clarksburg have in December?

The average day length in December in Clarksburg, West Virginia, is 9h and 28min.

When are sunrise and sunset in December in Clarksburg?

On the first day of December in Clarksburg, sunrise is at 7:22 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:08 pm EST.

How long on average sun shines in December in Clarksburg?

In Clarksburg, the average sunshine duration in December is 3.8h.

When is the lowest UV index in Clarksburg?

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

How high is the UV index in December in Clarksburg?

The average daily maximum UV index in December in Clarksburg is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe 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
Clarksburg, WV

Average temperature in December - Clarksburg, WV
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (35.8°F).

  • Average low temperature in December: 29.8°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure in December
Clarksburg, WV

Average pressure in December - Clarksburg, WV
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in December
Clarksburg, WV

Average wind speed in December - Clarksburg, WV
  • Average wind speed in December: 6.3mph

The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

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Average humidity in December
Clarksburg, WV

Average humidity in December - Clarksburg, WV
  • Average humidity in December: 82%

The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are July, August and November (77%).

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Average rainfall in December
Clarksburg, WV

Average rainfall in December - Clarksburg, WV
  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is September (2.09").

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Average rainfall days in December
Clarksburg, WV

Average rainfall days in December - Clarksburg, WV
  • Average rainfall days in December: 14 days

The month with the highest number of rainy days is May (20.4 days).
The month with the least rainy days is November (11.8 days).

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Average snowfall in December
Clarksburg, WV

Average snowfall in December - Clarksburg, WV
  • Average snowfall in December: 5.35"

The month with the highest snowfall is January (7.52").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Clarksburg, WV

Average snowfall days in December - Clarksburg, WV
  • Average snowfall days in December: 11.9 days

The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Clarksburg, 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: 3h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

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Average sunshine days in December
Clarksburg, WV

Average sunshine days in December - Clarksburg, WV
  • Average sunshine days in December: 9.2 days

The month with the most sunshine days is October (13.8 days).
The month with the least sunshine days is January (7.4 days).

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Average UV index in December
Clarksburg, WV

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

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

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Average cloud cover in December
Clarksburg, WV

Average cloud cover in December - Clarksburg, WV
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
Clarksburg, WV

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

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

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Clarksburg, West Virginia, USA

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