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North Charleston, SC Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in North Charleston, SC?
North Charleston, SC gets 52.5 in of precipitation a year over about 114 rainy days. July is the warmest month (average high 91°F) and January the coldest (average low 39°F).
Humid subtropical climate
North Charleston, SC has hot summers and mild winters. Daytime highs range from about 61°F in January to 91°F in July. August is usually the wettest month, and snow falls in winter. The most comfortable time to visit is typically February to April and October to December, when daytime highs sit near 70°F.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 41° | 62° |
| Spring | Mar–May | 55° | 77° |
| Summer | Jun–Aug | 73° | 90° |
| Autumn | Sep–Nov | 58° | 78° |
How much rain does North Charleston get?
North Charleston gets 52.5 in of precipitation in an average year, spread over about 114 days with measurable rain. That is more rainy days than 73% of the US.
August is the wettest month, with 7.0 in. November is the driest, with 2.7 in. July has the most rainy days, about 13.
The longest dry spell in the last five years lasted 30 days, to November 3, 2024.
From September 2025 to August 2026 North Charleston got 34.2 in of rain, against a normal of 52.5 in for those months. July 2026 had the most, with 8.5 in.
See where North Charleston ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in South Carolina.
Does it snow in North Charleston?
Rarely. The reporting station for North Charleston averages under 0.5 in of snow a season.
The snowiest winter on record is 1989–90, with 8.0 in.
The most recent measurable snow at the station fell on February 1, 2026.
From September 2025 to August 2026 the station measured 1.1 in of snow, against a normal of 0.3 in for those months. January 2026 had the most, with 0.7 in.
See where North Charleston ranks: snowiest cities in the US.
North Charleston weather by month
North Charleston weather in January
In January, North Charleston averages a high of 61°F and a low of 39°F. It gets 3.4 in of precipitation over about 9 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The January record high is 83°F (2024) and the record low is 6°F (1985).
North Charleston weather in February
In February, North Charleston averages a high of 64°F and a low of 42°F. It gets 3.0 in of precipitation over about 8 rainy days. Estimated sunshine is 42% of daylight hours, derived from ERA5 cloud cover. The February record high is 87°F (1989) and the record low is 12°F (1973). February is one of the most comfortable months to visit.
North Charleston weather in March
In March, North Charleston averages a high of 70°F and a low of 47°F. It gets 3.4 in of precipitation over about 8 rainy days. Estimated sunshine is 43% of daylight hours, derived from ERA5 cloud cover. The March record high is 90°F (1974) and the record low is 15°F (1980). March is one of the most comfortable months to visit.
North Charleston weather in April
In April, North Charleston averages a high of 77°F and a low of 55°F. It gets 3.3 in of precipitation over about 8 rainy days. Estimated sunshine is 55% of daylight hours, derived from ERA5 cloud cover. The April record high is 95°F (2002) and the record low is 30°F (2007). April is one of the most comfortable months to visit.
North Charleston weather in May
In May, North Charleston averages a high of 84°F and a low of 63°F. It gets 3.3 in of precipitation over about 8 rainy days. Estimated sunshine is 48% of daylight hours, derived from ERA5 cloud cover. The May record high is 101°F (2019) and the record low is 42°F (1981).
North Charleston weather in June
In June, North Charleston averages a high of 89°F and a low of 70°F. It gets 6.2 in of precipitation over about 12 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The June record high is 102°F (2011) and the record low is 50°F (1972).
North Charleston weather in July
In July, North Charleston averages a high of 91°F and a low of 74°F. It gets 6.6 in of precipitation over about 13 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The July record high is 104°F (1986) and the record low is 59°F (1972).
North Charleston weather in August
In August, North Charleston averages a high of 90°F and a low of 73°F. It gets 7.0 in of precipitation over about 13 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The August record high is 105°F (1999) and the record low is 56°F (1979).
North Charleston weather in September
In September, North Charleston averages a high of 85°F and a low of 68°F. It gets 6.0 in of precipitation over about 10 rainy days. Estimated sunshine is 44% of daylight hours, derived from ERA5 cloud cover. The September record high is 98°F (1999) and the record low is 46°F (1999).
North Charleston weather in October
In October, North Charleston averages a high of 78°F and a low of 58°F. It gets 4.3 in of precipitation over about 7 rainy days. Estimated sunshine is 59% of daylight hours, derived from ERA5 cloud cover. The October record high is 94°F (2019) and the record low is 27°F (1976). October is one of the most comfortable months to visit.
North Charleston weather in November
In November, North Charleston averages a high of 69°F and a low of 47°F. It gets 2.7 in of precipitation over about 7 rainy days. Estimated sunshine is 51% of daylight hours, derived from ERA5 cloud cover. The November record high is 87°F (1972) and the record low is 16°F (1970). November is one of the most comfortable months to visit.
North Charleston weather in December
In December, North Charleston averages a high of 63°F and a low of 42°F. It gets 3.4 in of precipitation over about 9 rainy days. Estimated sunshine is 48% of daylight hours, derived from ERA5 cloud cover. The December record high is 83°F (1972) and the record low is 11°F (1983). December is one of the most comfortable months to visit.
Sunshine, humidity and wind in North Charleston
October is the sunniest month in North Charleston, with estimated sunshine of 59% of daylight hours from ERA5 cloud cover. July is the cloudiest, at 36%. The annual cloud-cover estimate is 46% of daylight hours; it is not a measurement of sunshine duration. North Charleston is cloudier than 52% of the US.
Humidity peaks in August at 82% and is lowest in April at 69%.
Wind averages 8 mph over the year, and March is the windiest month at 9 mph.
North Charleston has about 63 days a year above 90°F. North Charleston is hotter than 76% of the US.
Thunderstorms occur on about 57 days a year.
See where North Charleston ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.
First and last freeze in North Charleston
The first fall freeze in North Charleston typically comes around November 24, and the last spring freeze around March 7. That leaves a frost-free growing season of about 262 days.
North Charleston weather records
These records cover CHARLESTON INTL AP during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the North Charleston station is 105°F, on August 1, 1999. The coldest is 6°F, on January 21, 1985.
The wettest day in the available station history brought 11.5 in of precipitation, on October 3, 2015.
35 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.5°F per decade since 1970.
The best time to visit North Charleston
The most comfortable time to visit is typically February to April and October to December, when daytime highs sit near 70°F.
Winter (December–February) is mild, with average highs around 62°F and lows near 41°F. Snow is possible.
Spring (March–May) is warm, with average highs around 77°F and lows near 55°F.
Summer (June–August) is hot, with average highs around 90°F and lows near 73°F. It can feel humid.
Autumn (September–November) is warm, with average highs around 78°F and lows near 58°F.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Wind | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|---|
| January | 39° | 61° | 3.4 in | 9 | 8 mph | 72% | 46% | 83° | 6° |
| February | 42° | 64° | 3.0 in | 8 | 9 mph | 74% | 42% | 87° | 12° |
| March | 47° | 70° | 3.4 in | 8 | 9 mph | 71% | 43% | 90° | 15° |
| April | 55° | 77° | 3.3 in | 8 | 9 mph | 69% | 55% | 95° | 30° |
| May | 63° | 84° | 3.3 in | 8 | 8 mph | 74% | 48% | 101° | 42° |
| June | 70° | 89° | 6.2 in | 12 | 8 mph | 78% | 40% | 102° | 50° |
| July | 74° | 91° | 6.6 in | 13 | 7 mph | 81% | 36% | 104° | 59° |
| August | 73° | 90° | 7.0 in | 13 | 7 mph | 82% | 38% | 105° | 56° |
| September | 68° | 85° | 6.0 in | 10 | 7 mph | 80% | 44% | 98° | 46° |
| October | 58° | 78° | 4.3 in | 7 | 7 mph | 77% | 59% | 94° | 27° |
| November | 47° | 69° | 2.7 in | 7 | 7 mph | 74% | 51% | 87° | 16° |
| December | 42° | 63° | 3.4 in | 9 | 8 mph | 74% | 48% | 83° | 11° |
Station: CHARLESTON INTL AP, 8 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
North Charleston climate questions
How much rain does North Charleston get?
North Charleston gets 52.5 in of precipitation in an average year, over about 114 rainy days.
What is the wettest month in North Charleston?
August is the wettest month in North Charleston, with 7.0 in. November is the driest, with 2.7 in.
How many rainy days does North Charleston have a year?
North Charleston has about 114 days with measurable rain in an average year. July has the most, about 13.
Does it snow in North Charleston?
Rarely. The reporting station for North Charleston averages under 0.5 in of snow a season. The snowiest winter on record is 1989–90, with 8.0 in.
What is the hottest month in North Charleston?
July is the warmest month in North Charleston, with an average high of 91°F.
What is the coldest month in North Charleston?
January is the coldest month in North Charleston, with an average low of 39°F.
What is the record high temperature in North Charleston?
Within the available 1970–2026 station history, the record high at the North Charleston station is 105°F, set on August 1, 1999. The record low is 6°F, on January 21, 1985.
What is the sunniest month in North Charleston?
October is the sunniest month in North Charleston, with estimated sunshine of 59% of daylight hours from ERA5 cloud cover. July is the cloudiest.
When is the first frost in North Charleston?
The first fall freeze in North Charleston typically comes around November 24. The last spring freeze is around March 7.
What is the best time to visit North Charleston?
The most comfortable time to visit is typically February to April and October to December, when daytime highs sit near 70°F.