Sumter, SC has a humid subtropical climate, characterized by hot and humid summers and mild to cool winters. Average summer temperatures are usually in the mid to upper 80s, with some days reaching into the 90s. Winters often bring temperatures ranging from the high 30s to mid 60s, with occasional cold snaps that can reach down into the 20s. Rainfall is abundant throughout the year, with an average of 48 inches per year. The area is also prone to hurricanes and tropical storms between June and November each year.
Sumter, South Carolina gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Sumter averages 1 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 222 sunny days per year in Sumter. The US average is 205 sunny days.
Sumter 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 34
Rain: averages 47 inches of rain a year
Snow: averages 1 inches of snow a year