Iron Mountain weather in September 2024

Expect 20°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Iron Mountain in September. Check more long-term weather averages for Iron Mountain in September before you book your next holiday to Michigan in 2024/2025.

  • 20°C maximum daytime temperature in September in Iron Mountain20
    20°C max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in September in Iron Mountain13
    13 days with some rainfall
  • 7°C minimum night-time temperature in September in Iron Mountain7
    7°C min night temperature
  • 12 hours of daylight per day in September in Iron Mountain12
    12 hours of daylight per day
  • No heat & humidity in September in Iron Mountain0
    No heat & humidity
  • 94 mm monthly rainfall in September in Iron Mountain94
    94 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Iron Mountain5
    5 (Moderate) UV index

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