In July, Longmont typically sees daytime highs of 30.9°C and overnight lows around 13.0°C. Compared to the annual average high of 18.2°C, July runs +12.7°C.
July in Longmont averages a daytime high of 30.9°C and an overnight low of 13.0°C.
July runs +12.7°C compared to Longmont's annual average high of 18.2°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 30.9°C and cooler evenings around 13.0°C.