Door County Climate
Door County, Wisconsin
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
43.9°F
Annual Precip
31.0"
Annual Snowfall
57.6"
Extreme Heat Days
1
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5b
Minimum winter temperature range for plant survival
1,962
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Door County
Climate Verdict
Door County has a cool, averaging 43.9°F annually, moderate rainfall of 31.0 inches per year, rare extreme heat with only 1.15 days above 90°F annually, moderate snowfall of 57.6 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 18.4°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
Door County closely matches the Wisconsin statewide average temperature of 44.4°F, it is somewhat drier than average for Wisconsin.
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 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.