Climate Fort Mill is located in a humid subtropical climate, Cfa in the Köppen climate classification. This means that the city experiences four distinct seasons, although the variation between the seasons is not as pronounced as in other parts of the United States. Generally, daytime maximum temperatures in the summer are around , with nighttime low temperatures of approximately . In winter, daytime maxima average around while nighttime low temperatures are near . Occasional readings as high as are seen, reaching a high of in 2007 or as low as in 1989. Summers are generally humid and prone to thunderstorms, while winters are rainy with sleet and occasional snow. Snow might fall during the winter but usually does not accumulate or persist as ground cover. Fort Mill experiences rainfall related to tropical cyclones but is generally too far inland to experience damaging winds. Fort Mill has not had any direct hits from any tropical systems since 1989, when Hurricane Hugo devastated the area.
Climate Fort Mill is located in a humid subtropical climate, Cfa in the Köppen climate classification. This means that the city experiences four distinct seasons, although the variation between the seasons is not as pronounced as in other parts of the United States. Generally, daytime maximum temperatures in the summer are around , with nighttime low temperatures of approximately . In winter, daytime maxima average around while nighttime low temperatures are near . Occasional readings as high as are seen, reaching a high of in 2007 or as low as in 1989. Summers are generally humid and prone to thunderstorms, while winters are rainy with sleet and occasional snow. Snow might fall during the winter but usually does not accumulate or persist as ground cover Fort Mill experiences rainfall related to tropical cyclones but is generally too far inland to experience damaging winds. For.t Mill has not had any direct hits from any tropical systems since 1989, when Hurricane Hugo devastated the area.