Brown County Climate

Brown County, Minnesota

JanFebMarAprMayJunJulAugSepOctNovDec45.1°AVG °F

Avg Annual Temp

45.1°F

Annual Precip

30.3"

Annual Snowfall

40.3"

Extreme Heat Days

9.65

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
0.7"
0.8"
1.6"
3.0"
4.2"
4.8"
4.0"
3.6"
3.1"
2.2"
1.4"
0.8"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring31°58°8.8"Summer68°72°12.4"Fall33°62°6.7"Winter14°20°2.4"20°40°60°80°100°

National Comparison

Warmer than 13% of US counties
Wetter than 27% of US counties
More seasonal variation than 90% of US counties

Climate Profile

About Brown County Weather

A Balanced Four-Season Climate

Brown County averages 45.1°F annually, trailing the national median by about 8 degrees. It experiences the full range of continental weather, from deep snow to humid heat.

Exceeding the State Average

With an average of 45.1°F, Brown County is 2.3 degrees warmer than the Minnesota state average. It ranks as one of the more temperate counties in the southern region.

Comparing Brown to the Southern Tier

Brown is slightly cooler than Blue Earth (46.3°F) but follows a similar pattern of 10 extreme heat days. Its 40.3 inches of snowfall is lower than many central Minnesota counties.

Frequent Heat and Cold Winters

Summer heat is common, with 10 days reaching 90°F or more and a July average of 71.8°F. Winter averages 17.9°F, creating a substantial snow season of 40.3 inches.

Dual-Season Home Preparation

HVAC systems must be prepared for both intense summer heat and the 14.4°F January average. Snow removal is a priority, but so is managing the 30.3 inches of annual rainfall.

Frequently Asked Questions

What is the average temperature in Brown County?
The average annual temperature in Brown County, MN is 45.1°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Brown County get?
Brown County receives an average of 30.3 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Brown County?
Yes, Brown County receives an average of 40.3 inches of snowfall per year according to NOAA climate normals.
How hot does Brown County get in summer?
The average summer temperature (June-August) in Brown County is 69.8°F. The county experiences an average of 9.65 days per year above 90°F.
How cold are winters in Brown County?
The average winter temperature (December-February) in Brown County is 17.9°F. January, typically the coldest month, averages 14.4°F.

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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.

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