In May, Porterville typically sees daytime highs of 28.3°C and overnight lows around 11.1°C. Compared to the annual average high of 25.3°C, May runs +3.0°C.
May in Porterville averages a daytime high of 28.3°C and an overnight low of 11.1°C.
May runs +3.0°C compared to Porterville's annual average high of 25.3°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 28.3°C and cooler evenings around 11.1°C.