March in Rock Hill averages a daily high of 18.8°C with nights around 5.8°C. Expect roughly 9.8 wet days totalling 89.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Rock Hill is April–May.
Based on WINTHROP UNIVERSITY, SC US (1.8km), 1995–2024. 23 years of March data.