In May, Billings typically sees daytime highs of 20.0°C and overnight lows around 4.8°C. Compared to the annual average high of 15.1°C, May runs +4.9°C.
May in Billings averages a daytime high of 20.0°C and an overnight low of 4.8°C.
May runs +4.9°C compared to Billings's annual average high of 15.1°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 20.0°C and cooler evenings around 4.8°C.