Winneshiek County Climate
Winneshiek County, Iowa
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
48.5°F
Annual Precip
37.6"
Annual Snowfall
37.5"
Extreme Heat Days
12
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
3,070
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Winneshiek County
Climate Verdict
Winneshiek County has a cool, averaging 48.5°F annually, moderate rainfall of 37.6 inches per year, rare extreme heat with only 12.2 days above 90°F annually, moderate snowfall of 37.5 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 19.0°F. summers are warm — July averages 73.5°F. Residents experience a substantial 55°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Winneshiek County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Winneshiek County closely matches the Iowa statewide average temperature of 48.0°F.
Climate Profile
About Winneshiek County Weather
Winneshiek County's Cool Temperate Climate
Winneshiek County averages 48.5°F annually, sitting below the national median. It experiences the sharp, scenic seasonal changes typical of the Driftless Area.
Near the State Average Temperature
The county's 48.5°F average is nearly identical to the Iowa state average of 48.0°F. It receives slightly more precipitation than the state norm, totaling 37.6 inches.
Warmer Than the Far North
Winneshiek is significantly warmer than Winnebago County's 44.9°F. However, it experiences similar heavy snowfall patterns found across northern Iowa.
Significant Snowfall and Cool Summers
Annual snowfall reaches 37.5 inches, paired with a January average of 19.0°F. Summer is mild, with a July average of 73.5°F and only 12 days of extreme heat.
Equip for a Long Snow Season
Robust snow tires and winter gear are essential for navigating the 37.5 inches of annual snow. Homeowners should also ensure basements are sealed against the 37.6 inches of annual rainfall.
Frequently Asked Questions
What is the average temperature in Winneshiek County?
How much rain does Winneshiek County get?
Does it snow in Winneshiek County?
How hot does Winneshiek County get in summer?
How cold are winters in Winneshiek County?
Track your own weather in Winneshiek 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.