Iosco County Climate
Iosco County, Michigan
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
45.0°F
Annual Precip
32.5"
Annual Snowfall
49.2"
Extreme Heat Days
6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5b
Minimum winter temperature range for plant survival
2,173
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Iosco County
Climate Verdict
Iosco County has a cool, averaging 45.0°F annually, moderate rainfall of 32.5 inches per year, rare extreme heat with only 5.85 days above 90°F annually, moderate snowfall of 49.2 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 20.4°F. summers are pleasantly cool with July averaging 69.0°F. The 49°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Iosco County closely matches the Michigan statewide average temperature of 45.7°F.
Climate Profile
About Iosco County Weather
Iosco stays cooler than the national average
Iosco County maintains an average annual temperature of 45.0°F, significantly lower than the national median. This northern Michigan climate offers a crisp alternative to warmer regions across the country.
Typical Michigan weather on the Huron shore
The county's 45.0°F average sits just below the Michigan state average of 45.7°F. It represents the transition point between the warmer southern mainland and the colder northern woods.
Drier and cooler than its state peers
With 32.5 inches of annual precipitation, Iosco is slightly drier than the state average of 34.5 inches. Its lakeside location helps moderate July highs to a comfortable 69.0°F.
Mild summers met by snowy winter months
Residents enjoy a gentle summer with only 6 days reaching 90°F or higher. However, winter brings 49.2 inches of snowfall and average temperatures of just 22.8°F.
Prepare for snow and moderate cooling needs
Reliable snow removal equipment is essential for handling nearly 50 inches of annual accumulation. While summers are mild, standard HVAC systems help manage the few humid weeks when temperatures peak.
Frequently Asked Questions
What is the average temperature in Iosco County?
How much rain does Iosco County get?
Does it snow in Iosco County?
How hot does Iosco County get in summer?
How cold are winters in Iosco County?
Track your own weather in Iosco County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.