Oneida County Climate
Oneida County, Wisconsin
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
40.3°F
Annual Precip
32.9"
Annual Snowfall
73.5"
Extreme Heat Days
3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4a
Minimum winter temperature range for plant survival
1,745
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Oneida County
Climate Verdict
Oneida County has a cool, averaging 40.3°F annually, moderate rainfall of 32.9 inches per year, rare extreme heat with only 2.5333333333333328 days above 90°F annually, heavy winter snowfall averaging 73.5 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 11.5°F. summers are pleasantly cool with July averaging 66.1°F. Residents experience a substantial 55°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Oneida County is 4.1°F cooler than the Wisconsin statewide average of 44.4°F.
Climate Profile
About Oneida County Weather
One of America’s Coldest Spots
Oneida County's annual average temperature is a bracing 40.3°F. This is more than 13 degrees colder than the national median, placing it in a truly arctic-influenced climate zone.
Well Below Wisconsin Norms
While the state average is 44.4°F, Oneida sits much lower at 40.3°F. It is one of the coldest counties in Wisconsin, characterized by long, punishing winters.
Coldest in the Northwoods
Oneida is significantly colder than neighboring Oconto (42.9°F) and Monroe (45.4°F). It also experiences higher snowfall, totaling 73.5 inches annually compared to the state's more moderate levels.
Epic Snow and Frigid Air
January temperatures average just 11.5°F, and the county is buried under six feet of snow annually. Summer is fleeting, with only 3 days per year topping 90°F and a July average of 66.1°F.
Winter Resilience is Key
High-capacity heating systems and professional-grade snow tires are mandatory here. With only 3 extreme heat days, focus home investments on winterization rather than cooling.
Frequently Asked Questions
What is the average temperature in Oneida County?
How much rain does Oneida County get?
Does it snow in Oneida County?
How hot does Oneida County get in summer?
How cold are winters in Oneida County?
Track your own weather in Oneida 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.