In March, St. John's typically sees daytime highs of 1.8°C and overnight lows around -4.8°C. Compared to the annual average high of 9.1°C, March runs -7.3°C.
March in St. John's averages a daytime high of 1.8°C and an overnight low of -4.8°C.
March runs -7.3°C compared to St. John's's annual average high of 9.1°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 1.8°C and cooler evenings around -4.8°C.