In August, Richmond Hill typically sees daytime highs of 24.9°C and overnight lows around 13.7°C. Compared to the annual average high of 11.6°C, August runs +13.3°C.
August in Richmond Hill averages a daytime high of 24.9°C and an overnight low of 13.7°C.
August runs +13.3°C compared to Richmond Hill's annual average high of 11.6°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 24.9°C and cooler evenings around 13.7°C.