In May, Calgary typically sees daytime highs of 15.8°C and overnight lows around 1.9°C. Compared to the annual average high of 9.5°C, May runs +6.4°C.
May in Calgary averages a daytime high of 15.8°C and an overnight low of 1.9°C.
May runs +6.4°C compared to Calgary's annual average high of 9.5°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 15.8°C and cooler evenings around 1.9°C.