In March, Montreal typically sees daytime highs of 1.8°C and overnight lows around -7.5°C. Compared to the annual average high of 10.8°C, March runs -9.0°C.
March in Montreal averages a daytime high of 1.8°C and an overnight low of -7.5°C.
March runs -9.0°C compared to Montreal's annual average high of 10.8°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 1.8°C and cooler evenings around -7.5°C.