In May, Johnson City typically sees daytime highs of 24.6°C and overnight lows around 10.4°C. Compared to the annual average high of 19.7°C, May runs +5.0°C.
May in Johnson City averages a daytime high of 24.6°C and an overnight low of 10.4°C.
May runs +5.0°C compared to Johnson City's annual average high of 19.7°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 24.6°C and cooler evenings around 10.4°C.