In September, Columbus typically sees daytime highs of 30.6°C and overnight lows around 18.1°C. Compared to the annual average high of 24.7°C, September runs +5.9°C.
September in Columbus averages a daytime high of 30.6°C and an overnight low of 18.1°C.
September runs +5.9°C compared to Columbus's annual average high of 24.7°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 30.6°C and cooler evenings around 18.1°C.