In March, Waterloo typically sees daytime highs of 5.8°C and overnight lows around -4.8°C. Compared to the annual average high of 14.4°C, March runs -8.6°C.
March in Waterloo averages a daytime high of 5.8°C and an overnight low of -4.8°C.
March runs -8.6°C compared to Waterloo's annual average high of 14.4°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 5.8°C and cooler evenings around -4.8°C.