Roscommon County Climate
Roscommon County, Michigan
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
44.0°F
Annual Precip
31.0"
Annual Snowfall
70.3"
Extreme Heat Days
6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
2,043
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Roscommon County
Climate Verdict
Roscommon County has a cool, averaging 44.0°F annually, moderate rainfall of 31.0 inches per year, rare extreme heat with only 5.85 days above 90°F annually, heavy winter snowfall averaging 70.3 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 19.1°F. summers are pleasantly cool with July averaging 67.8°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
Roscommon County closely matches the Michigan statewide average temperature of 45.7°F, it is somewhat drier than average for Michigan.
Climate Profile
About Roscommon County Weather
A dry and cool continental climate
Roscommon County averages 44.0°F annually, making it cooler than most of the United States. Its 31.0 inches of precipitation is notably lower than the Michigan state average of 34.5 inches.
Below average temperatures for the state
The county sits 1.7 degrees below the Michigan state average of 45.7°F. This cool profile is driven by its inland location in the northern part of the state.
Slightly warmer than northern neighbor Otsego
Roscommon’s 44.0°F average is significantly warmer than Otsego County’s 42.5°F. It also receives about 54 inches less snow annually than Otsego, making for a slightly milder winter experience.
Consistent winter snow and mild summers
The county receives 70.3 inches of snow annually, with January temperatures averaging 19.1°F. Summers remain comfortable with a July average of 67.8°F and only 6 days reaching above 90°F.
Manageable snow removal and heating needs
While 70.3 inches of snow requires a reliable blower, it is less extreme than neighboring snow belts. High-efficiency heating is the primary concern for residents, as January stays well below freezing.
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.