In March, Waterloo typically sees daytime highs of 3.0°C and overnight lows around -5.9°C. Compared to the annual average high of 11.9°C, March runs -8.8°C.
March in Waterloo averages a daytime high of 3.0°C and an overnight low of -5.9°C.
March runs -8.8°C compared to Waterloo's annual average high of 11.9°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 3.0°C and cooler evenings around -5.9°C.