Lake County Climate
Lake County, Minnesota
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
39.1°F
Annual Precip
31.5"
Annual Snowfall
81.4"
Extreme Heat Days
2
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
3b
Minimum winter temperature range for plant survival
1,548
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Lake County
Climate Verdict
Lake County has a cold, with an average annual temperature of 39.1°F, moderate rainfall of 31.5 inches per year, rare extreme heat with only 2.475 days above 90°F annually, heavy winter snowfall averaging 81.4 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 10.1°F. summers are pleasantly cool with July averaging 65.4°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
Lake County is 3.7°F cooler than the Minnesota statewide average of 42.8°F.
Climate Profile
About Lake County Weather
Cooled by the Great Lakes
Lake County features an annual average temperature of 39.1°F, significantly lower than the national median of 54°F. Its proximity to Lake Superior creates a unique microclimate that moderates extreme spikes but keeps averages low.
A cold and wet outlier
The county is colder than the state average of 42.8°F and wetter than most of Minnesota with 31.5 inches of annual precipitation. It ranks as one of the snowiest and dampest regions in the state.
The snow king of the region
With a massive 81.4 inches of annual snowfall, Lake County far outpaces its neighbors like Lake of the Woods. This high accumulation is driven by lake-effect moisture and the region's rugged topography.
Rare heat and heavy snow
Summer heat is almost non-existent, with only 2 days per year reaching 90°F. Conversely, winter is long and snowy, though the January average of 10.1°F is slightly warmer than the interior counties due to lake moderation.
Invest in heavy snow equipment
The 81.4 inches of snow makes a high-stage snowblower and four-wheel drive essential for daily life. Since extreme heat is so rare, residents typically prioritize insulation and moisture-resistant building materials over central air conditioning.
Frequently Asked Questions
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Track your own weather in Lake County
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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.