In March, Toronto typically sees daytime highs of 3.5°C and overnight lows around -3.6°C. Compared to the annual average high of 12.3°C, March runs -8.9°C.
March in Toronto averages a daytime high of 3.5°C and an overnight low of -3.6°C.
March runs -8.9°C compared to Toronto's annual average high of 12.3°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 3.5°C and cooler evenings around -3.6°C.