Iron County Climate
Iron County, Michigan
Avg Annual Temp
38.7°F
Annual Precip
30.9"
Annual Snowfall
67.4"
Extreme Heat Days
2.55
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Iron County Weather
Deep cold defines the Iron County climate
At 38.7°F, Iron County is one of the coldest spots in the nation compared to the median. This sub-arctic feel is much more extreme than typical Midwestern weather patterns.
Among the coldest counties in Michigan
Iron County sits well below the state average of 45.7°F, marking it as a northern outlier. Its inland Upper Peninsula location lacks the moderating influence of the Great Lakes.
Colder and snowier than the Michigan average
Iron County receives 67.4 inches of snow annually, far exceeding the totals found in the Lower Peninsula. Average winter temperatures of 13.7°F make it significantly harsher than the state median.
Short summers and long, frozen winters
Summer is brief, with July averaging 64.2°F and only 3 days hitting the 90°F mark. Winter dominates the calendar, characterized by persistent sub-freezing temperatures and heavy snow.
Gear up for heavy-duty winter living
High-efficiency heating systems and industrial-grade snowblowers are absolute necessities here. Residents should invest in extreme cold-weather gear for a winter that lasts nearly five months.
Frequently Asked Questions
What is the average temperature in Iron County?
How much rain does Iron County get?
Does it snow in Iron County?
How hot does Iron County get in summer?
How cold are winters in Iron County?
Track your own weather in Iron County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.