Fort Mill, SC has a humid subtropical climate with hot summers and mild winters. July is the hottest month with temperatures reaching an average of 89掳F (32掳C). January is the coldest month with an average low of 28掳F (-2掳C). Average yearly precipitation is around 46 inches (117 cm), with the wettest months being August and September. The area experiences short, mild winters, with occasional snowfall but no prolonged periods of cold weather. Spring and fall are very pleasant and transition periods, but can be unpredictable due to frequent thunderstorms in the area.
Fort Mill (zip 29715), South Carolina gets 44 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Fort Mill (zip 29715) 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 29715). The US average is 205 sunny days.
Fort Mill (zip 29715) 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 90 degrees
Winter Low: the January low is 31
Rain: averages 44 inches of rain a year
Snow: averages 3 inches of snow a year