December weather forecast
Allen Junction, WV

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Weather in December

The first month of the winter, December, is still a chilly month in Allen Junction, West Virginia, with an average temperature varying between 43.5°F (6.4°C) and 30.7°F (-0.7°C).

Temperature

December's onset introduces a mild reduction in the average high-temperature, from a cool 52°F (11.1°C) in November to a frosty 43.5°F (6.4°C). Allen Junction throughout December, experiences an average nighttime temperature of 30.7°F (-0.7°C).

Humidity

The average relative humidity in December is 81%.

Rainfall

In Allen Junction, in December, during 12.4 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Allen Junction, during the entire year, the rain falls for 180.7 days and collects up to 32.24" (819mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Allen Junction, West Virginia, during December, snow falls for 10.5 days and regularly aggregates up to 5.55" (141mm) of snow. In Allen Junction, during the entire year, snow falls for 50.3 days and aggregates up to 27.09" (688mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 36min of daylight.
On the first day of December in Allen Junction, 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 Allen Junction, the average sunshine in December is 4.6h.

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 estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 2 during December leads to these instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

Is December cold in Allen Junction?

An average high-temperature, in December, in Allen Junction, is 43.5°F (6.4°C) and the average low-temperature is 30.7°F (-0.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in August is computed to be 87.8°F (31°C).

What is the average humidity in December in Allen Junction?

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

How much does it rain in Allen Junction in December?

In December, in Allen Junction, West Virginia, the rain falls for 12.4 days. Throughout December, 3.15" (80mm) of precipitation is accumulated.

How many days does it snow in December in Allen Junction?

In Allen Junction, West Virginia, during December, snow falls for 10.5 days and regularly aggregates up to 5.55" (141mm) of snow.

What is the month with the shortest days in Allen Junction?

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

How many hours of daylight does Allen Junction have in December?

In Allen Junction, West Virginia, the average day length in December is 9h and 37min.

When are sunrise and sunset in December in Allen Junction?

In December, on the first day of the month, sunrise is at 7:22 am and sunset at 5:07 pm. On the last day of the month, in Allen Junction, West Virginia, sunrise is at 7:40 am and sunset at 5:17 pm EST.

How long on average sun shines in December in Allen Junction?

In Allen Junction, West Virginia, the average sunshine duration in December is 4.6h.

When is the lowest UV index in Allen Junction?

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

What is the UV index reading in December in Allen Junction?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from 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
Allen Junction, WV

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

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in December: 30.7°F

The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure in December
Allen Junction, WV

Average pressure in December - Allen Junction, 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 (29.99"Hg).

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Average wind speed in December
Allen Junction, WV

Average wind speed in December - Allen Junction, WV
  • Average wind speed in December: 6.6mph

The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in December
Allen Junction, WV

Average humidity in December - Allen Junction, WV
  • Average humidity in December: 81%

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

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Average rainfall in December
Allen Junction, WV

Average rainfall in December - Allen Junction, WV
  • Average rainfall in December: 3.15"

The wettest months (with the highest rainfall) are February and May (3.43").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in December
Allen Junction, WV

Average rainfall days in December - Allen Junction, WV
  • Average rainfall days in December: 12.4 days

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is November (11.3 days).

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Average snowfall in December
Allen Junction, WV

Average snowfall in December - Allen Junction, WV
  • Average snowfall in December: 5.55"

The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Allen Junction, WV

Average snowfall days in December - Allen Junction, WV
  • Average snowfall days in December: 10.5 days

The month with the highest number of snowfall days is January (13.1 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
Allen Junction, WV

Average daylight in December / Average sunshine in December - Allen Junction, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in December
Allen Junction, WV

Average sunshine days in December - Allen Junction, WV
  • Average sunshine days in December: 11.7 days

The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is February (8.3 days).

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Average UV index in December
Allen Junction, WV

Average UV index in December - Allen Junction, WV
  • Average UV index in December: 2

The months with the highest UV index are June 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
Allen Junction, WV

Average cloud cover in December - Allen Junction, 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 36).

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Average visibility in December
Allen Junction, WV

Average visibility in December - Allen Junction, WV
  • Average visibility in December: 5mi

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

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Allen Junction, West Virginia, USA

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