In May, Downey typically sees daytime highs of 22.9°C and overnight lows around 12.7°C. Compared to the annual average high of 23.4°C, May runs -0.4°C.
May in Downey averages a daytime high of 22.9°C and an overnight low of 12.7°C.
May runs -0.4°C compared to Downey's annual average high of 23.4°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 22.9°C and cooler evenings around 12.7°C.