Hartsville, SC has a humid subtropical climate, with warm temperatures in the summer and cool temperatures during the winter months. The average annual temperature is 61掳F and precipitation averages around 50 inches per year. Summers are usually hot and humid, with high temperatures reaching into the 90s 掳F frequently. Winters are mild, but can have cold snaps with temperatures below freezing occasionally.
Hartsville (zip 29550), South Carolina gets 46 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Hartsville (zip 29550) averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 217 sunny days per year in Hartsville (zip 29550). The US average is 205 sunny days.
Hartsville (zip 29550) gets some kind of precipitation, on average, 102 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 31
Rain: averages 46 inches of rain a year
Snow: averages 0 inches of snow a year