Fayette County Climate
Fayette County, Iowa
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
46.3°F
Annual Precip
37.9"
Annual Snowfall
40.2"
Extreme Heat Days
8
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
2,743
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Fayette County
Climate Verdict
Fayette County has a cool, averaging 46.3°F annually, moderate rainfall of 37.9 inches per year, rare extreme heat with only 7.733333333333334 days above 90°F annually, moderate snowfall of 40.2 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 16.4°F. summers are warm — July averages 71.8°F. Residents experience a substantial 55°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Fayette County closely matches the Iowa statewide average temperature of 48.0°F.
Climate Profile
About Fayette County Weather
A classic Midwestern continental climate
Fayette County averages 46.3°F annually, which is significantly cooler than the national median. This humid continental region experiences wide temperature swings and receives 37.9 inches of precipitation per year.
Cooler than the Iowa average
The county's 46.3°F annual average sits nearly two degrees below the state average of 48.0°F. While colder on average, its 37.9 inches of rain makes it wetter than the typical Iowa county.
Colder and snowier than western neighbors
Fayette is notably colder than Floyd County, which averages 46.5°F. It also sees more winter precipitation, with 40.2 inches of snow compared to Floyd’s 37.5 inches.
Harsh winters and mild summers
Winters are intense with a January average of 16.4°F and 40.2 inches of annual snowfall. Summers remain relatively comfortable, averaging only 8 days per year where temperatures reach or exceed 90°F.
Prioritize winter home prep
Residents should invest in high-efficiency heating systems to handle the 19.8°F winter average. Heavy-duty snow removal equipment is a necessity given the high 40.2-inch annual snowfall.
Frequently Asked Questions
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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.