In July, Castle Rock typically sees daytime highs of 29.3°C and overnight lows around 12.4°C. Compared to the annual average high of 16.8°C, July runs +12.5°C.
July in Castle Rock averages a daytime high of 29.3°C and an overnight low of 12.4°C.
July runs +12.5°C compared to Castle Rock's annual average high of 16.8°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 29.3°C and cooler evenings around 12.4°C.