Door County Climate
Door County, Wisconsin
Avg Annual Temp
43.9°F
Annual Precip
31.0"
Annual Snowfall
57.6"
Extreme Heat Days
1.15
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Door County Weather
Maritime influence on temperature
Door County averages 43.9°F annually, which is 10 degrees below the national median. The surrounding waters of Lake Michigan and Green Bay moderate the climate, preventing temperature extremes.
Cooler than the state median
The county's average of 43.9°F is slightly below the Wisconsin average of 44.4°F. Its unique peninsula geography creates a cooler summer environment than the inland counties.
Drier and snowier than neighbors
With only 31.0 inches of annual precipitation, Door is drier than the state average of 34.5 inches. However, it receives significantly more snow (57.6 inches) than its southern neighbors like Dodge.
Cool summers and heavy snow
Door County is famous for its mild summers, seeing only 1 day per year over 90°F. Winter is long and white, with 57.6 inches of snow and a January average of 18.4°F.
Plan for long snow seasons
Residents don't need much air conditioning but must be prepared for 57.6 inches of snow. High-quality winter tires and robust snowblowers are essential for navigating the peninsula's winter months.
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.