Alpena County Climate
Alpena County, Michigan
Avg Annual Temp
44.0°F
Annual Precip
30.8"
Annual Snowfall
68.5"
Extreme Heat Days
6.7
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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 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.