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Charleston Temperatures: Averages by Month. The numbers here tell you how hot and cold the weather usually is in Charleston, South Carolina during each month of the year. The average high and low temperatures are listed below monthly and annually for Charleston, in both degrees Fahrenheit and Celsius. Maximums and minimums are only part of the ...
The hottest month of the year in Charleston is July, with an average high of 89°F and low of 76°F. The cool season lasts for 3.0 months, from December 1 to March 1, with an average daily high temperature below 65°F. The coldest month of the year in Charleston is January, with an average low of 43°F and high of 59°F.
The average temperature is of 18.8 °C (66 °F), with a minimum of 12.5 °C (54.5 °F) and a maximum of 25.1 °C (77.1 °F). On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 4 °C (39.5 °F). However, it dropped to -1.1 °C (30 °F) in April 2007.
Quick Climate Info; Hottest Month: July (83 °F avg) Coldest Month: January (50 °F avg) Wettest Month: August (6.97" avg) Windiest Month: April (15 mph avg) Annual precip. 52.56"
Charleston, South Carolina - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data.
Weather.com brings you the most accurate monthly weather forecast for Charleston, SC with average/record and high/low temperatures, precipitation and more.
The city of Charleston experiences a significant amount of rainfall, even during the month with historically low precipitation levels. This climate is considered to be Cfa according to the Köppen-Geiger climate classification. The average annual temperature in Charleston is 19.3 °C | 66.8 °F.
