January weather forecast and climate
Charleston, West VA

The calm Kanawha River in front of Charleston, West Virginia, reflecting the city in its water
The calm Kanawha River in front of Charleston, West Virginia, reflecting the city in its water
January, like December, in Charleston, West Virginia, is another cold winter month, with average temperature varying between 38.7°F (3.7°C) and 25.3°F (-3.7°C).

Temperature

With an average high-temperature of 38.7°F (3.7°C) and an average low-temperature of 25.3°F (-3.7°C), January is the coldest month.

Humidity

Months with the highest humidity in Charleston are January and February, with an average relative humidity of 82%.

Rainfall

In Charleston, West Virginia, during 11.8 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, there are 180.4 rainfall days, and 34.06" (865mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 14.1 days and accumulates 5.51" (140mm) of snow.

Daylight

The average length of the day in Charleston is 9.9h.

Sunshine

January has the least sunshine of the year, with an average of 3.7h of sunshine.

UV index

Months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 2 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Charleston?

The coldest month in Charleston is January, with an average high-temperature of 38.7°F (3.7°C) and an average low-temperature of 25.3°F (-3.7°C).

What is the temperature in January in Charleston?

In January, in Charleston, West Virginia, the average high-temperature is 38.7°F (3.7°C), and the average low-temperature is 25.3°F (-3.7°C).

What are the most humid months in Charleston?

January and February, with an average relative humidity of 82%, are most humid months.

What is the average humidity in January in Charleston?

The average relative humidity in January in Charleston, West Virginia, is 82%.

How much does it rain in Charleston in January?

In Charleston, in January, during 11.8 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

How much does it snow in Charleston in January?

In Charleston, in January, snow falls for 14.1 days, with typically accumulated 5.51" (140mm) of snow.

When does it snow the most in Charleston?

January is the month with the most snowfall. Snow falls for 14.1 days and accumulates 5.51" (140mm) of snow.

What is the average length of the day in January in Charleston?

In Charleston, the average length of the day in January is 9.9h.

What is the month with the least sunshine in Charleston?

January has the least sunshine of the year in Charleston, West Virginia, with an average of 3.7h of sunshine.

How many hours of sunshine does Charleston have in January?

In Charleston, the average sunshine in January is 3.7h.

When is the lowest UV index in Charleston?

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

How high is the UV index in January in Charleston?

In Charleston, West Virginia, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health threat from the exposure to the Sun's UV radiation.
Average temperature in January - Charleston, West VA
  • Average high temperature in January: 38.7°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in January: 25.3°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

Average pressure in January - Charleston, West VA
  • Average pressure in January: 30.15"

The month with the highest atmospheric pressure is November (30.16").
The month with the lowest atmospheric pressure is June (29.98").

Average wind speed in January - Charleston, West VA
  • Average wind speed in January: 6.5mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in January - Charleston, West VA
  • Average humidity in January: 82%

Months with the highest relative humidity are January and February (82%).
Months with the lowest relative humidity are June, July, August and November (76%).

Average rainfall in January - Charleston, West VA
  • Average rainfall in January: 2.68"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in January - Charleston, West VA
  • Average rainfall days in January: 11.8 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 days).

Average snowfall in January - Charleston, West VA
  • Average snowfall in January: 5.51"

The month with the highest snowfall is January (5.51").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in January - Charleston, West VA
  • Average snowfall days in January: 14.1 days

The month with the highest number of snowfall days is January (14.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January / Average sunshine in January - Charleston, West VA
  • Average daylight in January: 9.9h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in January: 3.7h

The month with the most sunshine is August (Average sunshine: 10.2h).
The month with the least sunshine is January (Average sunshine: 3.7h).

Average sunshine days in January - Charleston, West VA
  • Average sunshine days in January: 9.8 days

Months with the most sunshine days are October and November (16.5 days).
The month with the least sunshine days is February (8.4 days).

Average UV index in January - Charleston, West VA
  • Average UV index in January: 2

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in January - Charleston, West VA
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in January - Charleston, West VA
  • Average visibility in January: 5mi

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