In May, Salem typically sees daytime highs of 19.8°C and overnight lows around 6.3°C. Compared to the annual average high of 17.2°C, May runs +2.5°C.
May in Salem averages a daytime high of 19.8°C and an overnight low of 6.3°C.
May runs +2.5°C compared to Salem's annual average high of 17.2°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 19.8°C and cooler evenings around 6.3°C.