In September, Broken Arrow typically sees daytime highs of 29.5°C and overnight lows around 16.6°C. Compared to the annual average high of 21.9°C, September runs +7.6°C.
September in Broken Arrow averages a daytime high of 29.5°C and an overnight low of 16.6°C.
September runs +7.6°C compared to Broken Arrow's annual average high of 21.9°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 29.5°C and cooler evenings around 16.6°C.