Summerville, SC is known for its warm and humid climate. The town experiences hot summers with temperatures often reaching up to the high 90s Fahrenheit (35-37°C), while the winters are mild and subtropical with temperatures usually ranging from the mid-to-high 40s Fahrenheit (7-9°C). Rainfall is plentiful throughout the year, with an average of 36 inches (91 cm) annually. Humidity levels are typically high due to the area's proximity to both the Atlantic Ocean and nearby marshlands.
Summerville, South Carolina gets 51 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Summerville averages 1 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 209 sunny days per year in Summerville. The US average is 205 sunny days.
Summerville gets some kind of precipitation, on average, 104 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 92 degrees
Winter Low: the January low is 35
Rain: averages 51 inches of rain a year
Snow: averages 1 inches of snow a year