Berrien County Climate
Berrien County, Michigan
Avg Annual Temp
50.5°F
Annual Precip
38.3"
Annual Snowfall
74.5"
Extreme Heat Days
12.766666666666666
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Berrien County Weather
One of Michigan’s Warmest Gateways
Berrien County averages 50.5°F annually, bringing it closer to the national median than most of its northern neighbors. This southwestern corner of the state experiences a more temperate climate than the Michigan interior.
Ranking High for Michigan Heat
The county's 50.5°F average stands well above the statewide average of 45.7°F, marking it as a regional warm spot. This difference supports a longer growing season and more humid summer days compared to the Upper Peninsula.
A Rainy Coastline with Lake Effect
Receiving 38.3 inches of precipitation annually, Berrien is wetter than the Michigan average of 34.5 inches. It balances this moisture with 74.5 inches of snow, often driven by lake-effect clouds from Lake Michigan.
Hot Summers Meet Snowy Winters
Summer temperatures peak at 72.8°F in July, featuring 13 days of extreme heat above 90°F. Winter is relatively mild for Michigan, with a December-to-February average of 29.0°F.
Prepare for Humid Heat and Snow
Homeowners should invest in efficient air conditioning to manage the 13 annual extreme heat days. Regular gutter maintenance is also essential to handle the high 38.3-inch annual rainfall.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.