Cass County Climate
Cass County, Minnesota
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
41.1°F
Annual Precip
27.0"
Annual Snowfall
48.5"
Extreme Heat Days
3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4a
Minimum winter temperature range for plant survival
2,117
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Cass County
Climate Verdict
Cass County has a cool, averaging 41.1°F annually, moderate rainfall of 27.0 inches per year, rare extreme heat with only 3.2600000000000002 days above 90°F annually, moderate snowfall of 48.5 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are severe, with January averaging a frigid 8.6°F. summers are pleasantly cool with July averaging 69.2°F. Residents experience a substantial 61°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Cass County closely matches the Minnesota statewide average temperature of 42.8°F, it is somewhat drier than average for Minnesota.
Climate Profile
About Cass County Weather
Deeply Chilled Below National Medians
Cass County averages 41.1°F annually, keeping it firmly in the cold-temperate category compared to the rest of the nation. The local climate is defined by long, dominant winters and short, pleasant summers.
Running Slightly Cooler and Drier than Average
The county's average temperature of 41.1°F falls about 1.7 degrees short of the Minnesota state average. It also sees less precipitation than the state norm, recording 27.0 inches annually against a 30.0-inch average.
A Transitional Climate in Central Minnesota
Cass County is drier than eastern neighbors like Chisago but remains significantly warmer than northern Cook County. It serves as a middle ground between the snowy north woods and the warmer southern prairies.
A Sanctuary from Extreme Summer Heat
Summer is brief and mild, with only three days a year hitting 90°F. Winter brings a sharp chill, as January averages 8.6°F and the county receives 48.5 inches of snow on average.
Focus on Winter Resilience Over AC
With only three days of extreme heat, central air conditioning is less critical than a robust, high-performance heating system. Residents should prepare for 48.5 inches of snow with reliable plowing services and high-quality winter apparel.
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.