Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Charleston's coldest month, January, registers temperatures that range from a high of 38.7°F (3.7°C) to 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.Rainfall
In January, the rain falls for 11.8 days. Throughout January, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 180.4 rainfall days, and 34.06" (865mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. 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.Daylight
In January, the average length of the day is 9h and 52min.On the first day of the month, sunrise is at 7:43 am and sunset at 5:16 pm. On the last day of January, 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 reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In January, an average UV index of 2 transforms into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is it in January?
What are the most humid months in Charleston?
What is the average humidity in January?
How many days does it rain in January?
When does it snow the most?
How many days does it snow in January?
How many hours of daylight does Charleston have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine in Charleston?
How long on average sun shines in January?
What is the month with the lowest UV index?
What is the UV index intensity in January in Charleston?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Charleston, West Virginia, USA
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