In May, Highlands Ranch typically sees daytime highs of 21.6°C and overnight lows around 5.8°C. Compared to the annual average high of 18.1°C, May runs +3.5°C.
May in Highlands Ranch averages a daytime high of 21.6°C and an overnight low of 5.8°C.
May runs +3.5°C compared to Highlands Ranch's annual average high of 18.1°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 21.6°C and cooler evenings around 5.8°C.