In September, Norfolk County typically sees daytime highs of 21.4°C and overnight lows around 10.7°C. Compared to the annual average high of 12.6°C, September runs +8.8°C.
September in Norfolk County averages a daytime high of 21.4°C and an overnight low of 10.7°C.
September runs +8.8°C compared to Norfolk County's annual average high of 12.6°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 21.4°C and cooler evenings around 10.7°C.