In October, San Tan Valley typically sees daytime highs of 31.3°C and overnight lows around 13.5°C. Compared to the annual average high of 29.7°C, October runs +1.6°C.
October in San Tan Valley averages a daytime high of 31.3°C and an overnight low of 13.5°C.
October runs +1.6°C compared to San Tan Valley's annual average high of 29.7°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 31.3°C and cooler evenings around 13.5°C.