December weather forecast
Bolt, WV

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Weather in December

The first month of the winter, December, is also a frosty month in Bolt, West Virginia, with an average temperature ranging between max 43.5°F (6.4°C) and min 31.1°F (-0.5°C).

Temperature

The transition into December subtly indicates a reduction in the average high-temperature, down to a frosty 43.5°F (6.4°C) from November's fresh 51.8°F (11°C). In the month of December, the average low-temperature usually rests at a freezing cold 31.1°F (-0.5°C).

Humidity

The average relative humidity in December in Bolt is 81%.

Rainfall

In Bolt, during December, the rain falls for 9.5 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 135.9 rainfall days, and 16.46" (418mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Bolt, West Virginia, in December, snow falls for 5.4 days, with typically accumulated 2.05" (52mm) of snow. In Bolt, during the entire year, snow falls for 30.3 days and aggregates up to 8.66" (220mm) 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 in Bolt, sunrise is at 7:22 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:17 pm EST.

Sunshine

In Bolt, the average sunshine in December is 4.5h.

UV index

The months with the lowest UV index in Bolt 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 vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is it in Bolt in December?

The high-temperature in Bolt, West Virginia, during December is 43.5°F (6.4°C) and the low-temperature is 31.1°F (-0.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 89.6°F (32°C).

What is the average humidity in December in Bolt?

In December, the average relative humidity is 81%.

How much does it rain in Bolt in December?

In December, in Bolt, West Virginia, the rain falls for 9.5 days. Throughout December, 1.57" (40mm) of precipitation is accumulated.

How much does it snow in Bolt in December?

In Bolt, during December, snow falls for 5.4 days and regularly aggregates up to 2.05" (52mm) of snow.

What is the month with the shortest days in Bolt?

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

How many hours of daylight does Bolt have in December?

In December, the average day length is 9h and 36min.

What time are sunrise and sunset in December in Bolt?

On the first day of December, sunrise is at 7:22 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:17 pm EST.

How many hours of sunshine does Bolt have in December?

In December, the average sunshine duration in Bolt, West Virginia, is 4.5h.

What are the months with the lowest UV index in Bolt?

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

How high is the UV index in December in Bolt?

In Bolt, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Bolt, WV

Average temperature in December - Bolt, WV
  • Average high temperature in December: 43.5°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

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Average pressure in December
Bolt, WV

Average pressure in December - Bolt, 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 (29.98"Hg).

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Average wind speed in December
Bolt, WV

Average wind speed in December - Bolt, WV
  • Average wind speed in December: 6.4mph

The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

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Average humidity in December
Bolt, WV

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

The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April, June, July, August and November (77%).

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Average rainfall in December
Bolt, WV

Average rainfall in December - Bolt, WV
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is September (0.71").

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Average rainfall days in December
Bolt, WV

Average rainfall days in December - Bolt, WV
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is November (7.8 days).

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Average snowfall in December
Bolt, WV

Average snowfall in December - Bolt, WV
  • Average snowfall in December: 2.05"

The month with the highest snowfall is March (2.13").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Bolt, WV

Average snowfall days in December - Bolt, WV
  • Average snowfall days in December: 5.4 days

The month with the highest number of snowfall days is January (8.3 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
Bolt, WV

Average daylight in December / Average sunshine in December - Bolt, WV
  • Average daylight in December: 9h and 4min

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: 4h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in December
Bolt, WV

Average sunshine days in December - Bolt, WV
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (12.6 days).

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Average UV index in December
Bolt, WV

Average UV index in December - Bolt, 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).

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Average cloud cover in December
Bolt, WV

Average cloud cover in December - Bolt, WV
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
Bolt, WV

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

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

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Bolt, West Virginia, USA

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