In September, Buffalo typically sees daytime highs of 22.1°C and overnight lows around 11.5°C. Compared to the annual average high of 13.5°C, September runs +8.6°C.
September in Buffalo averages a daytime high of 22.1°C and an overnight low of 11.5°C.
September runs +8.6°C compared to Buffalo's annual average high of 13.5°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 22.1°C and cooler evenings around 11.5°C.