In March, Phoenix typically sees daytime highs of 24.3°C and overnight lows around 7.7°C. Compared to the annual average high of 30.0°C, March runs -5.7°C.
March in Phoenix averages a daytime high of 24.3°C and an overnight low of 7.7°C.
March runs -5.7°C compared to Phoenix's annual average high of 30.0°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 24.3°C and cooler evenings around 7.7°C.