July in Rock Hill averages a daily high of 32.7°C with nights around 21.3°C. Expect roughly 9.3 wet days totalling 102.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Rock Hill is April–May.
Based on WINTHROP UNIVERSITY, SC US (1.8km), 1995–2024. 28 years of July data.