December weather forecast
West Union, WV

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Weather in December

December, the first month of the winter in West Union, is also a wintry month, with an average temperature ranging between min 30.6°F (-0.8°C) and max 42.1°F (5.6°C).

Temperature

In December, the average high-temperature marginally drops from a fresh 50.7°F (10.4°C) in November to a wintry 42.1°F (5.6°C). West Union's nighttime temperature during December is consistently averaged at a subzero cold 30.6°F (-0.8°C).

Humidity

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

Rainfall

In West Union, West Virginia, in December, it is raining for 12.7 days, with typically 3.39" (86mm) of accumulated precipitation. Throughout the year, in West Union, there are 186.8 rainfall days, and 38.7" (983mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in West Union, West Virginia. In December, it is snowing for 12.3 days. Throughout December, 5.43" (138mm) of snow is accumulated. Throughout the year, in West Union, there are 58.9 snowfall days, and 29.41" (747mm) of snow is accumulated.

Daylight

December has the shortest days of the year in West Union, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:24 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:10 pm EST.

Sunshine

The average sunshine in December in West Union is 3.7h.

UV index

The months with the lowest UV index in West Union are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in West Union in December?

December temperatures in West Union vary between a high-temperature of 42.1°F (5.6°C) and a low-temperature of 30.6°F (-0.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is estimated at 89.6°F (32°C).

What is the average humidity in December in West Union?

The average relative humidity in December in West Union, West Virginia, is 82%.

How many days does it rain in December in West Union?

In West Union, during December, the rain falls for 12.7 days and regularly aggregates up to 3.39" (86mm) of precipitation.

How many days does it snow in December in West Union?

In West Union, during December, snow falls for 12.3 days and regularly aggregates up to 5.43" (138mm) of snow.

What is the month with the shortest days in West Union?

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 West Union?

In December, the average day length in West Union, West Virginia, is 9h and 28min.

When are sunrise and sunset in December in West Union?

On the first day of December in West Union, West Virginia, sunrise is at 7:24 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:10 pm EST.

How long on average sun shines in December in West Union?

The average sunshine duration in December in West Union, West Virginia, is 3.7h.

What are the months with the lowest UV index in West Union?

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

How high is the UV index in December in West Union?

The average daily maximum UV index in December in West Union, West Virginia, is 2. A UV Index reading 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
West Union, WV

Average temperature in December - West Union, WV
  • Average high temperature in December: 42.1°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (23°F).

Average pressure in December
West Union, WV

Average pressure in December - West Union, 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).

Average wind speed in December
West Union, WV

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

The windiest months (with the highest average wind speed) are January and February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in December
West Union, WV

Average humidity in December - West Union, WV
  • Average humidity in December: 82%

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

Average rainfall in December
West Union, WV

Average rainfall in December - West Union, WV
  • Average rainfall in December: 3.39"

The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is September (2.24").

Average rainfall days in December
West Union, WV

Average rainfall days in December - West Union, WV
  • Average rainfall days in December: 12.7 days

The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is November (11.4 days).

Average snowfall in December
West Union, WV

Average snowfall in December - West Union, WV
  • Average snowfall in December: 5.43"

The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
West Union, WV

Average snowfall days in December - West Union, WV
  • Average snowfall days in December: 12.3 days

The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
West Union, WV

Average daylight in December / Average sunshine in December - West Union, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days in December
West Union, WV

Average sunshine days in December - West Union, WV
  • Average sunshine days in December: 9.7 days

The month with the most sunshine days is November (14.9 days).
The month with the least sunshine days is January (7.4 days).

Average UV index in December
West Union, WV

Average UV index in December - West Union, 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).

Average cloud cover in December
West Union, WV

Average cloud cover in December - West Union, WV
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
West Union, WV

Average visibility in December - West Union, 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).

West Union, West Virginia, USA

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