Fort Mill, SC has a moderate climate with warm, humid summers and mild winters. Average temperatures in the summer range from 75-95 degrees Fahrenheit and in the winter from 40-60 degrees Fahrenheit. The area sees an average of 48 inches of rainfall annually, mostly during the spring and summer months. It snows sporadically during winter months, usually only one to three times per season. Humidity is generally high throughout the year, topping out at near 100% in August and September.
Fort Mill (zip 29707), South Carolina gets 44 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Fort Mill (zip 29707) averages 3 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 214 sunny days per year in Fort Mill (zip 29707). The US average is 205 sunny days.
Fort Mill (zip 29707) gets some kind of precipitation, on average, 99 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 91 degrees
Winter Low: the January low is 32
Rain: averages 44 inches of rain a year
Snow: averages 3 inches of snow a year