In March, Round Rock typically sees daytime highs of 21.9°C and overnight lows around 8.4°C. Compared to the annual average high of 25.8°C, March runs -3.9°C.
March in Round Rock averages a daytime high of 21.9°C and an overnight low of 8.4°C.
March runs -3.9°C compared to Round Rock's annual average high of 25.8°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 21.9°C and cooler evenings around 8.4°C.