December weather forecast
Kopperston, WV

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Weather in December

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

Temperature

The shift from November to December includes a small decrease in the average high-temperature, from a cool 51.8°F (11°C) to a frosty 43.5°F (6.4°C). During December, Kopperston records an average temperature of 31.1°F (-0.5°C) at night.

Humidity

The average relative humidity in December is 81%.

Rainfall

In Kopperston, in December, during 9.5 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Kopperston, during the entire year, the rain falls for 135.9 days and collects up to 16.46" (418mm) of precipitation.

Snowfall

Months with snowfall in Kopperston are January through May, October through December. In Kopperston, in December, snow falls for 5.4 days, with typically accumulated 2.05" (52mm) of snow. Throughout the year, there are 30.3 snowfall days, and 8.66" (220mm) of snow is accumulated.

Daylight

The month with the shortest days in Kopperston is December, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 7:23 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:17 pm EST.

Sunshine

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

UV index

The months with the lowest UV index in Kopperston are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

How cold does it get in Kopperston in December?

The average high-temperature, in December, in Kopperston, is 43.5°F (6.4°C), while the average low-temperature is 31.1°F (-0.5°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 89.6°F (32°C).

What is the average humidity in December in Kopperston?

In December, the average relative humidity in Kopperston, West Virginia, is 81%.

How much does it rain in Kopperston in December?

In Kopperston, West Virginia, during December, the rain falls for 9.5 days and regularly aggregates up to 1.57" (40mm) of precipitation.

How many days does it snow in December in Kopperston?

In Kopperston, West Virginia, 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 Kopperston?

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

How many hours of daylight does Kopperston have in December?

In December, the average day length in Kopperston, West Virginia, is 9h and 36min.

When is the sunrise / sunset in December in Kopperston?

On the first day of December in Kopperston, West Virginia, sunrise is at 7:23 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:17 pm EST.

How long on average sun shines in December in Kopperston?

In December, the average sunshine duration in Kopperston is 4.5h.

When is the lowest UV index in Kopperston?

The months with the lowest UV index in Kopperston, 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 Kopperston?

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

Average temperature in December - Kopperston, 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
Kopperston, WV

Average pressure in December - Kopperston, 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
Kopperston, WV

Average wind speed in December - Kopperston, 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
Kopperston, WV

Average humidity in December - Kopperston, 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
Kopperston, WV

Average rainfall in December - Kopperston, 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
Kopperston, WV

Average rainfall days in December - Kopperston, 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
Kopperston, WV

Average snowfall in December - Kopperston, 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
Kopperston, WV

Average snowfall days in December - Kopperston, 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
Kopperston, WV

Average daylight in December / Average sunshine in December - Kopperston, 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
Kopperston, WV

Average sunshine days in December - Kopperston, 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
Kopperston, WV

Average UV index in December - Kopperston, 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
Kopperston, WV

Average cloud cover in December - Kopperston, 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
Kopperston, WV

Average visibility in December - Kopperston, 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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Kopperston, West Virginia, USA

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