In March, San Tan Valley typically sees daytime highs of 24.0°C and overnight lows around 6.9°C. Compared to the annual average high of 29.7°C, March runs -5.7°C.
March in San Tan Valley averages a daytime high of 24.0°C and an overnight low of 6.9°C.
March runs -5.7°C compared to San Tan Valley's annual average high of 29.7°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 24.0°C and cooler evenings around 6.9°C.