Clinton County Climate
Clinton County, Michigan
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
48.9°F
Annual Precip
33.7"
Annual Snowfall
50.2"
Extreme Heat Days
10
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
2,820
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Clinton County
Climate Verdict
Clinton County has a cool, averaging 48.9°F annually, moderate rainfall of 33.7 inches per year, rare extreme heat with only 9.85 days above 90°F annually, moderate snowfall of 50.2 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 24.0°F. summers are warm — July averages 72.3°F. The 48°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
Clinton County is 3.2°F warmer than the Michigan statewide average of 45.7°F.
Climate Profile
About Clinton County Weather
A temperate pocket in America's heartland
Clinton County maintains an average annual temperature of 48.9°F, placing it several degrees below the national median of approximately 54°F. This continental climate brings a full range of seasonal extremes typical of the Great Lakes region.
Outpacing the Michigan state average
The county's 48.9°F average is significantly warmer than the Michigan state average of 45.7°F. It stands as one of the milder southern-tier counties in the state's Lower Peninsula.
Warmer and drier than northern peers
Clinton is notably warmer than Crawford County to the north, which averages only 43.3°F. While it sees 50.2 inches of snow, it remains significantly drier than the snow belts found further north.
Hot July days and snowy winters
July brings an average of 72.3°F and roughly 10 days of extreme heat reaching 90°F or higher. Winters are rigorous, featuring a January average of 24.0°F and 50.2 inches of total snowfall.
Prepare for humidity and ice
Residents need robust HVAC systems to handle both the 10 annual extreme heat days and the 26.6°F winter average. Proper insulation and winter tires are essential for navigating the 50-inch snow season.
Frequently Asked Questions
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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.