Climate in South Carolina United States
Average daytime and nighttime temperatures
All climatic diagrams on this site result from the collected data from 9 measuring stations in South Carolina.
Weather stations at an altitude above 660m have not been included.
All data correspond to the average monthly values of the last 20 years.
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South Carolina is one of the warmest region in the United States with an average daily high temperature of 24 degrees centigrade. The climate is almost moderate, but also offers a few sultry months with high humidity and high temperatures.
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› Daylengths and sun positions in the United States
› Compare climate with other regions or countries
Hours of sunshine per day

The number of hours of sunshine refers to the time when the sun is actually visible. That is, without any obstruction of visibility by clouds, fog or mountains. With 10 hours per day, June is the sunniest month in the state of South Carolina. In December the sun shines the shortest.
Rainy days per month

A rainy day is a day on which at least an amount of 0.1 mm precipitation (=0.1 liter) per square meter falls. This can be rain, snow, hail or even dew. So it does not have to rain the whole day. With 10 rainy days, July offers the most number of rainy days, and in October the least.
Precipitation in mm/day

The amount of precipitation is measured in millimeters per square meter. Thus, at 2 mm/day, 2 liters of water fall on one square meter within 24 hours. With only 2.7 mm, the least rain falls in January. August, on the other hand, has the most rain.
Water temperature

Water temperature depends not only on solar radiation within the same region, but also on ocean currents. For example, depending on the season, cold or warm water masses are moved from other areas. The warmest temperatures in South Carolina are in July, when the water is 29 °C.
Relative humidity in %

Warm air can absorb more moisture than cold air. The relative humidity indicates how much moisture of the physically possible is actually contained in the air. At high humidity, the person feels uncomfortable and perceives this as oppressive. In general, a relative humidity of 40-60% gives as pleasant. With humidity averaging 82%, August is the most uncomfortable. In April, on the other hand, it is easier to endure.
Absolute humidity in g/m³

In warm months, there is also a higher absolute humidity almost everywhere. At a temperature of 25°C, air can absorb up to 23 grams of water per cubic meter. At 20°C, it is only 17.3 grams. A relative humidity of 40% at 25°C thus corresponds to an absolute humidity of 9.2 grams of water. From a proportion of approx. 13.5 grams, humans perceive the air as muggy. This limit is reached in 5 months in South Carolina, although these are average values, and a month is rarely completely or not at all considered humid.
Humidex in °C

The "Humidex" (humidity index) is an index of well-being in warmer areas, calculated from the air temperature, relative humidity and dew point. The index corresponds approximately to the temperature felt. At high temperatures, the body transports heat away by sweating. At high humidity the ambient air can only absorb a small amount of sweat and thus one feels uncomfortable. An index of 20-29 is considered comfortable. Up to 39, people perceive the air as slightly uncomfortable, and above 40, as very uncomfortable. Values above 45 are dangerous in the long run and often lead to heat stroke.
Climate charts for other states in the United States

Most important cities in the state »South Carolina«
Alone 3 cities with over 100,000 inhabitants are located here. The state has a west-east extension of about 400 km and over 320 km from north to south.City | Population | Geo-Position | |
---|---|---|---|
Charleston | 134,385 | 32° 46' 36"N | 79° 55' 51"W |
Columbia | 134,309 | 34° 0' 3"N | 81° 2' 5"W |
North Charleston | 109,298 | 32° 51' 17"N | 79° 58' 29"W |
Mount Pleasant | 67,843 | 32° 47' 39"N | 79° 51' 45"W |
Rock Hill | 66,154 | 34° 55' 30"N | 81° 1' 30"W |
Greenville | 58,409 | 34° 51' 9"N | 82° 23' 38"W |
Summerville | 43,392 | 33° 1' 7"N | 80° 10' 32"W |
Sumter | 40,524 | 33° 55' 14"N | 80° 20' 29"W |
Hilton Head Island | 37,099 | 32° 12' 59"N | 80° 45' 9"W |
Florence | 37,056 | 34° 11' 44"N | 79° 45' 45"W |
Spartanburg | 37,013 | 34° 56' 58"N | 81° 55' 55"W |
Goose Creek | 35,938 | 32° 58' 52"N | 80° 1' 57"W |
Aiken | 29,524 | 33° 33' 38"N | 81° 43' 10"W |
Myrtle Beach | 27,109 | 33° 41' 21"N | 78° 53' 12"W |
Anderson | 26,686 | 34° 30' 12"N | 82° 39' 0"W |
Greer | 25,515 | 34° 56' 19"N | 82° 13' 37"W |
Greenwood | 23,222 | 34° 11' 43"N | 82° 9' 42"W |
Mauldin | 22,889 | 34° 46' 43"N | 82° 18' 36"W |
Taylors | 21,617 | 34° 55' 13"N | 82° 17' 46"W |
North Augusta | 21,348 | 33° 30' 6"N | 81° 57' 54"W |
Saint Andrews | 21,151 | 34° 2' 44"N | 81° 7' 45"W |
Wade Hampton | 20,622 | 34° 54' 13"N | 82° 19' 59"W |
Easley | 19,993 | 34° 49' 47"N | 82° 36' 5"W |
Socastee | 19,952 | 33° 41' 1"N | 78° 59' 54"W |
Simpsonville | 18,238 | 34° 44' 13"N | 82° 15' 15"W |
Hanahan | 17,997 | 32° 55' 7"N | 80° 1' 19"W |
Lexington | 17,870 | 33° 58' 54"N | 81° 14' 10"W |
Conway | 17,103 | 33° 50' 10"N | 79° 2' 52"W |
Seven Oaks | 15,144 | 34° 2' 56"N | 81° 8' 47"W |
West Columbia | 14,988 | 33° 59' 37"N | 81° 4' 26"W |
Data basis: German Weather Service, individual values averaged and supplemented by own elements. Data on cities and inhabitants: geonames.org, United Nations Statistics Division and own research.