In February, Castle Rock typically sees daytime highs of 7.5°C and overnight lows around -8.5°C. Compared to the annual average high of 16.8°C, February runs -9.3°C.
February in Castle Rock averages a daytime high of 7.5°C and an overnight low of -8.5°C.
February runs -9.3°C compared to Castle Rock's annual average high of 16.8°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 7.5°C and cooler evenings around -8.5°C.