In September, Lehi typically sees daytime highs of 26.4°C and overnight lows around 8.7°C. Compared to the annual average high of 17.4°C, September runs +8.9°C.
September in Lehi averages a daytime high of 26.4°C and an overnight low of 8.7°C.
September runs +8.9°C compared to Lehi's annual average high of 17.4°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 26.4°C and cooler evenings around 8.7°C.