Ozaukee County Climate
Ozaukee County, Wisconsin
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
46.7°F
Annual Precip
33.9"
Annual Snowfall
42.3"
Extreme Heat Days
5
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5b
Minimum winter temperature range for plant survival
2,305
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Ozaukee County
Climate Verdict
Ozaukee County has a cool, averaging 46.7°F annually, moderate rainfall of 33.9 inches per year, rare extreme heat with only 4.8 days above 90°F annually, moderate snowfall of 42.3 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 22.7°F. summers are warm — July averages 70.1°F. The 47°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
Ozaukee County closely matches the Wisconsin statewide average temperature of 44.4°F.
Climate Profile
About Ozaukee County Weather
A Lake-Moderated Climate
Ozaukee County averages 46.7°F annually, which is about 7 degrees cooler than the U.S. median. Proximity to Lake Michigan helps buffer the temperature extremes seen further inland.
Warmest on the List
Ozaukee is significantly warmer than the Wisconsin state average of 44.4°F. This 46.7°F average makes it one of the most temperate spots in the state.
Milder Than Inland Neighbors
Compared to Outagamie (45.2°F) or Monroe (45.4°F), Ozaukee stays noticeably warmer in the winter. Its 42.3 inches of snow is also much lower than the 50-70 inches seen elsewhere.
Milder Winters and Pleasant Summers
The winter average of 25.2°F is the highest among these counties, while snowfall remains a manageable 42.3 inches. Summers stay comfortable with a July average of 70.1°F.
Watch for Lake Effects
While winters are warmer, residents should still prepare for lake-effect snow events that can cause sudden accumulation. Summer cooling needs are moderate with only 5 days over 90°F annually.
Frequently Asked Questions
What is the average temperature in Ozaukee County?
How much rain does Ozaukee County get?
Does it snow in Ozaukee County?
How hot does Ozaukee County get in summer?
How cold are winters in Ozaukee County?
Track your own weather in Ozaukee County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.