In March, Santa Rosa typically sees daytime highs of 16.5°C and overnight lows around 4.7°C. Compared to the annual average high of 20.4°C, March runs -3.9°C.
March in Santa Rosa averages a daytime high of 16.5°C and an overnight low of 4.7°C.
March runs -3.9°C compared to Santa Rosa's annual average high of 20.4°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 16.5°C and cooler evenings around 4.7°C.