June in Rock Hill averages a daily high of 31°C with nights around 19.4°C. Expect roughly 9.2 wet days totalling 99.3mm. 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. 30 years of June data.