In March, Plano typically sees daytime highs of 19.6°C and overnight lows around 6.8°C. Compared to the annual average high of 24.4°C, March runs -4.9°C.
March in Plano averages a daytime high of 19.6°C and an overnight low of 6.8°C.
March runs -4.9°C compared to Plano's annual average high of 24.4°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 19.6°C and cooler evenings around 6.8°C.