Charleston, TN experiences a humid subtropical climate with hot and humid summers and mild winters. Summers in Charleston are often hot and muggy, with temperatures reaching into the mid 80s Fahrenheit (30s Celsius) on the hottest days. Winters see temperatures drop to around freezing during the night, but during the day temperatures can reach up to the low 50s Fahrenheit (10s Celsius). Precipitation is relatively evenly distributed throughout the year, with an average of about 48 inches per year. The area is also prone to strong thunderstorms in late spring and early summer months.
Charleston, Tennessee gets 55 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Charleston averages 3 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 213 sunny days per year in Charleston. The US average is 205 sunny days.
Charleston gets some kind of precipitation, on average, 127 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 88 degrees
Winter Low: the January low is 27
Rain: averages 55 inches of rain a year
Snow: averages 3 inches of snow a year