Alpena County Climate
Alpena County, Michigan
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
44.0°F
Annual Precip
30.8"
Annual Snowfall
68.5"
Extreme Heat Days
7
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
2,004
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Alpena County
Climate Verdict
Alpena County has a cool, averaging 44.0°F annually, moderate rainfall of 30.8 inches per year, rare extreme heat with only 6.7 days above 90°F annually, heavy winter snowfall averaging 68.5 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 19.6°F. summers are pleasantly cool with July averaging 68.0°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
Alpena County closely matches the Michigan statewide average temperature of 45.7°F, it is somewhat drier than average for Michigan.
Climate Profile
About Alpena County Weather
Lakeside Cold in the Great North
Alpena County maintains an average temperature of 44.0°F, sitting well below the national median of approximately 54°F. Its climate is heavily influenced by Lake Huron, which brings both moisture and temperature moderation.
A Typical Northern Lower Peninsula Climate
Alpena’s 44.0°F average is nearly two degrees cooler than the state average of 45.7°F. While it isn't the coldest county in Michigan, it represents the brisk climate typical of the state's northern coastline.
Warmer Than Its Southern Neighbor
Interestingly, Alpena’s 44.0°F average is warmer than Alcona County directly to the south, which averages 42.8°F. It experiences more annual snowfall (68.5 inches) than Alcona (46.8 inches), likely due to increased lake-effect interaction.
Significant Snow and Mild Summers
The county receives 68.5 inches of snow annually, making winter recreation a local staple. July is pleasant with an average of 68.0°F, and the county typically sees 7 days of heat at or above 90°F.
Prepare for Snowy Coastal Winters
Homeowners should invest in high-quality insulation and snow removal tools to handle the 68.5 inches of annual snow. Winter temperatures average 22.1°F, necessitating a reliable and efficient primary heating source.
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.