In March, Houston typically sees daytime highs of 22.5°C and overnight lows around 10.9°C. Compared to the annual average high of 26.2°C, March runs -3.7°C.
March in Houston averages a daytime high of 22.5°C and an overnight low of 10.9°C.
March runs -3.7°C compared to Houston's annual average high of 26.2°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 22.5°C and cooler evenings around 10.9°C.