Olmsted County Climate
Olmsted County, Minnesota
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
44.0°F
Annual Precip
35.2"
Annual Snowfall
49.9"
Extreme Heat Days
6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4b
Minimum winter temperature range for plant survival
2,391
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Olmsted County
Climate Verdict
Olmsted County has a cool, averaging 44.0°F annually, moderate rainfall of 35.2 inches per year, rare extreme heat with only 6.45 days above 90°F annually, moderate snowfall of 49.9 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 13.8°F. summers are warm — July averages 70.1°F. Residents experience a substantial 56°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Olmsted County closely matches the Minnesota statewide average temperature of 42.8°F, it is also noticeably wetter, receiving 5.2 inches more precipitation than the state average.
Climate Profile
About Olmsted County Weather
Cool-Temperate Southeast Minnesota Hub
Olmsted's 44.0°F average temperature reflects a cool-temperate climate far below the national median. It experiences a wide range of weather common to the upper Mississippi Valley.
Warmer Than the State Median
This county is warmer than the state average of 42.8°F. It benefits from a slightly more temperate southern latitude compared to the rest of Minnesota.
Higher Precipitation Than Western Neighbors
Olmsted is significantly wetter than average, receiving 35.2 inches of annual precipitation. It sees nearly 50 inches of snow, surpassing southern neighbor Nobles.
Mild Summers and Snowy Winters
Summer is mild with only 6 days of extreme heat over 90°F. Winter is cold but manageable, with a 17.3°F average from December through February.
Managing High Rainfall and Snow
Prioritize waterproofing and gutter maintenance to handle the high 35.2-inch rainfall. Ensure snowblowers are tuned for the nearly 50 inches of annual snowfall.
Frequently Asked Questions
What is the average temperature in Olmsted County?
How much rain does Olmsted County get?
Does it snow in Olmsted County?
How hot does Olmsted County get in summer?
How cold are winters in Olmsted County?
Track your own weather in Olmsted County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.