In August, Rock Hill typically sees daytime highs of 31.3°C and overnight lows around 19.4°C. Compared to the annual average high of 22.1°C, August runs +9.2°C.
August in Rock Hill averages a daytime high of 31.3°C and an overnight low of 19.4°C.
August runs +9.2°C compared to Rock Hill's annual average high of 22.1°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 31.3°C and cooler evenings around 19.4°C.