In July, Decatur typically sees daytime highs of 30.4°C and overnight lows around 17.7°C. Compared to the annual average high of 17.2°C, July runs +13.2°C.
July in Decatur averages a daytime high of 30.4°C and an overnight low of 17.7°C.
July runs +13.2°C compared to Decatur's annual average high of 17.2°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 30.4°C and cooler evenings around 17.7°C.