Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
Weather Guide
Iron Mountain, Michigan, United States Average Monthly Weather
Weather score36Poor annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 11°C, sunshine averages 6.4h per day, and rainfall totals about 755mm. Sea temperatures average 9°C across the year.
Annual weather
Annual averages
Temp
11°C
Rain
755mm
Annual total
Sun
6.4h
Sea
9°C
Weather score
36
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 86mm, so some wet days are possible.
Bright
Sunshine averages 10h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 19°C, so the water can feel cool.
Map
Weather map
Compare Iron Mountain, Michigan, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July27°C average high
July is one of Iron Mountain's warmest months, with daytime heat above the yearly average.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
July86mm average rain
July is wetter than Iron Mountain's yearly average, so flexible plans matter more.
Driest monthsJanuary to March and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July10 hours average sun
July is one of Iron Mountain's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July19°C average sea
July is one of Iron Mountain's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 19°C in this stretch, so swimming comfort is at its strongest.
Weather score
July65 weather score
July is one of Iron Mountain's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
