January weather forecast
North Charleston, SC

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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.

Frequently asked questions

What time of the year is the coldest?

January stands out as North Charleston's coldest month, with temperatures ranging between an average high of 56.8°F (13.8°C) and a low of 42.8°F (6°C).

What is the average January temperature?

In January, the average high-temperature and low-temperature are 56.8°F (13.8°C) and 42.8°F (6°C) respectively.

What is the average humidity in January?

In North Charleston, the average relative humidity in January is 73%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 8.8 days and typically collects 0.67" (17mm) of precipitation.

How many days does it rain in January?

In North Charleston, in January, during 8.8 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

How many days does it snow in January?

In January, snow falls for 0.1 days.

How many hours of daylight does North Charleston have in January?

The average day length in January in North Charleston, South Carolina, is 10h and 17min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:22 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:50 pm EST.

How many hours of sunshine does North Charleston have in January?

In January, the average sunshine duration is 5.8h.

When is the lowest UV index?

January is the month with the lowest UV index, with an average maximum UV index of 3.

What is the UV index reading in January?

In North Charleston, the average daily maximum UV index in January is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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
North Charleston, SC

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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in January - North Charleston, SC
  • Average daylight in January: 10h and 2min

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 5min

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 - 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 - 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 - 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 - 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).

North Charleston, South Carolina, USA

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