Blue Earth County Climate
Blue Earth County, Minnesota
Avg Annual Temp
46.3°F
Annual Precip
33.3"
Annual Snowfall
42.5"
Extreme Heat Days
13.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Blue Earth County Weather
Southern Minnesota's Warmer Profile
Blue Earth County’s 46.3°F average is closer to the national median than most of the state, though still roughly 7 degrees cooler. It features a productive climate with higher precipitation than northern peers.
Among the State's Warmest Counties
At 46.3°F, Blue Earth sits 3.5 degrees above the Minnesota state average of 42.8°F. It represents the warmer, agricultural heartland of southern Minnesota.
Warmer and Rainier Than Neighbors
Blue Earth is warmer than Brown County (45.1°F) and experiences more precipitation at 33.3 inches. It also sees more extreme heat, with 13 days over 90°F annually.
Hot Summers and Bracing Winters
The county averages 13 extreme heat days, with July reaching 72.6°F. Winters are relatively mild for Minnesota at 19.1°F, though the area still receives 42.5 inches of snow.
Managing Heat and High Moisture
Residents need robust air conditioning to handle the frequent 90°F+ days. The 33.3 inches of precipitation requires effective property drainage and gutter maintenance.
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.