In November, Thornton typically sees daytime highs of 11.9°C and overnight lows around -3.7°C. Compared to the annual average high of 18.6°C, November runs -6.7°C.
November in Thornton averages a daytime high of 11.9°C and an overnight low of -3.7°C.
November runs -6.7°C compared to Thornton's annual average high of 18.6°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 11.9°C and cooler evenings around -3.7°C.