January weather forecast
Charleston, WV

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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

Weather in January

Charleston’s climatological journey begins with January, a month of cold temperatures and a fair share of snowfall. The city experiences humidity at 82% and cloud cover at 63%, contributing to the wintry feeling. Notably, January records an average high temperature of 38.7°F (3.7°C) and an average low of 25.3°F (-3.7°C), accompanied by 5.51" (140mm) of snowfall, making it a bone-chilling start to the year. Winds in January average 6.5mph (10.5km/h), adding to the overall chill. The City of Charleston, in its wintry garb, sees slightly less than 10 sunshine days and about 10 hours of daylight.

Temperature

In Charleston, January is the month with the lowest recorded average temperatures, measuring a high of 38.7°F (3.7°C) and a low of 25.3°F (-3.7°C).

Humidity

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

Rainfall

In Charleston, West Virginia, in January, 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

Months with snowfall in Charleston are January through May, October through December. The month with the most snowfall in Charleston is January, when snow falls for 14.1 days and typically aggregates up to 5.51" (140mm) of snow.

Daylight

The average length of the day in January is 9h and 52min.
On the first day of January, sunrise is at 7:43 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:47 pm EST.

Sunshine

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

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the maximum UV index of 2 suggests these recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

What are the coldest months in Charleston?

The coldest month in Charleston, West Virginia, 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).

Is it cold in Charleston during January?

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

What is the most humid month in Charleston?

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

What is the average humidity in January in Charleston?

In Charleston, the average relative humidity in January is 82%.

How much does it rain in Charleston in January?

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

What is the snowiest month in Charleston?

The month with the most snowfall is January, when snow falls for 14.1 days and typically aggregates up to 5.51" (140mm) of snow.

How much does it snow in Charleston in January?

In January, in Charleston, West Virginia, it is snowing for 14.1 days. Throughout January, 5.51" (140mm) of snow is accumulated.

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

In January, the average day length in Charleston is 9h and 52min.

When is the sunrise / sunset in January in Charleston?

In January, on the first day of the month, sunrise is at 7:43 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:47 pm EST.

What is the month with the least sunshine in Charleston?

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

How many hours of sunshine does Charleston have in January?

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

What are the months with the lowest UV index in Charleston?

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

What is the UV index intensity in January in Charleston?

The average daily maximum UV index in January in Charleston is 2. A UV Index estimate of 2, and below, represents a low health risk 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 January
Charleston, WV

Average temperature in January - Charleston, WV
  • 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).

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Average pressure in January
Charleston, WV

Average pressure in January - Charleston, WV
  • Average pressure in January: 30.15"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 January
Charleston, WV

Average wind speed in January - Charleston, WV
  • 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).

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Average humidity in January
Charleston, WV

Average humidity in January - Charleston, WV
  • Average humidity in January: 82%

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

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Average rainfall in January
Charleston, WV

Average rainfall in January - Charleston, WV
  • 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").

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Average rainfall days in January
Charleston, WV

Average rainfall days in January - Charleston, WV
  • 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).

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Average snowfall in January
Charleston, WV

Average snowfall in January - Charleston, WV
  • Average snowfall in January: 5.51"

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

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Average snowfall days in January
Charleston, WV

Average snowfall days in January - Charleston, WV
  • Average snowfall days in January: 14.1 days

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

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Average daylight in January /
Average sunshine in January
Charleston, WV

Average daylight in January / Average sunshine in January - Charleston, WV
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in January
Charleston, WV

Average sunshine days in January - Charleston, WV
  • Average sunshine days in January: 9.8 days

The 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).

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Average UV index in January
Charleston, WV

Average UV index in January - Charleston, WV
  • Average UV index in January: 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 and December (UV index 2).

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Average cloud cover in January
Charleston, WV

Average cloud cover in January - Charleston, WV
  • 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).

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Average visibility in January
Charleston, WV

Average visibility in January - Charleston, WV
  • Average visibility in January: 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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Charleston, West Virginia, USA

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