January weather forecastNorth Charleston, SC
January
Weather in January
In North Charleston, South Carolina, the start of the year brings cool temperatures, abundant clouds, and a breezy atmosphere. January's weather remains somewhat consistent, with maximum temperatures peaking at 56.8°F (13.8°C) and minimum temperatures falling to 42.8°F (6°C). The city's weather leans towards the colder side as compared to the following month, February. The month of January experiences on average 8.8 days of rain, setting a distinctively moist start to the year. Residents and visitors should bundle up as the cool and moist conditions are typical of this month's weather.Temperature
January tends to be the coldest month, with temperatures averaging a daily high of 56.8°F (13.8°C) and a low of 42.8°F (6°C).Humidity
The average relative humidity in January is 73%.Rainfall
The month with the least rainfall is January, when the rain falls for 8.8 days and typically collects 0.67" (17mm) of precipitation.Snowfall
January, February and December are months with snowfall. In North Charleston, during January, snow falls for 0.1 days. Throughout the year, there are 0.5 snowfall days.Daylight
In January, the average length of the day is 10h and 17min.On the first day of the month, sunrise is at 7:22 am and sunset at 5:24 pm. On the last day of January, sunrise is at 7:15 am and sunset at 5:50 pm EST.
Sunshine
In North Charleston, the average sunshine in January is 5.8h.UV index
With an average maximum UV index of 3, January is the month with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 3 in January translates into this advice:
Take precautions - Protection against sun damage is advised. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
North Charleston, SC
- Average high temperature in January: 56.8°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in January: 42.8°F
The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).
Average pressure in January
North Charleston, SC
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in January
North Charleston, SC
- Average wind speed in January: 7.8mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in January
North Charleston, SC
- Average humidity in January: 73%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).
Average rainfall in January
North Charleston, SC
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in January
North Charleston, SC
- Average rainfall days in January: 8.8 days
The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is November (6.9 days).
Average snowfall days in January
North Charleston, SC
- Average snowfall days in January: 0.1 days
The month with the highest number of snowfall days is December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
North Charleston, SC
- Average daylight in January: 10h and 18min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 5h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in January
North Charleston, SC
- Average sunshine days in January: 20.1 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (6.1 days).
Average UV index in January
North Charleston, SC
- Average UV index in January: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in January
North Charleston, SC
- Average cloud cover in January: 35
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 26).
Average visibility in January
North Charleston, SC
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





