December weather forecast
Salem, WV

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Weather in December

The first month of the winter, December, is still a cold month in Salem, West Virginia, with an average temperature ranging between max 42.1°F (5.6°C) and min 30.6°F (-0.8°C).

Temperature

December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a fresh 50.7°F (10.4°C) in November to a wintry 42.1°F (5.6°C). Throughout December, Salem encounters an average temperature drop to a subzero cold 30.6°F (-0.8°C).

Humidity

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

Rainfall

In December, the rain falls for 12.7 days. Throughout December, 3.39" (86mm) of precipitation is accumulated. Throughout the year, 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 Salem, in December, during 12.3 snowfall days, 5.43" (138mm) of snow is typically accumulated. Throughout the year, there are 58.9 snowfall days, and 29.41" (747mm) of snow is accumulated.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:23 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:09 pm EST.

Sunshine

In Salem, the average sunshine in December is 3.7h.

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 reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 2 in December transforms into this advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

The average high-temperature, in December, in Salem, is 42.1°F (5.6°C), while the average low-temperature is 30.6°F (-0.8°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 89.6°F (32°C).

What is the average humidity in December in Salem?

In December, the average relative humidity is 82%.

How much does it rain in December?

In December, in Salem, the rain falls for 12.7 days. Throughout December, 3.39" (86mm) of precipitation is accumulated.

How many days does it snow in December?

In Salem, in December, during 12.3 snowfall days, 5.43" (138mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length is 9h and 28min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:23 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:09 pm EST.

How long on average sun shines in December in Salem?

In December, the average sunshine duration is 3.7h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Salem, WV

Average temperature in December - Salem, 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
Salem, WV

Average pressure in December - Salem, 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
Salem, WV

Average wind speed in December - Salem, 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
Salem, WV

Average humidity in December - Salem, 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
Salem, WV

Average rainfall in December - Salem, 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
Salem, WV

Average rainfall days in December - Salem, 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
Salem, WV

Average snowfall in December - Salem, 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
Salem, WV

Average snowfall days in December - Salem, 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
Salem, WV

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

Average sunshine days in December - Salem, 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
Salem, WV

Average UV index in December - Salem, 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
Salem, WV

Average cloud cover in December - Salem, 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
Salem, WV

Average visibility in December - Salem, 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).

Salem, West Virginia, USA

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