Wayne County Climate
Wayne County, Iowa
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
49.8°F
Annual Precip
40.4"
Annual Snowfall
—
Extreme Heat Days
16
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5b
Minimum winter temperature range for plant survival
3,188
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Wayne County
Climate Verdict
Wayne County has a cool, averaging 49.8°F annually, moderately wet with 40.4 inches of annual precipitation, rare extreme heat with only 16.4 days above 90°F annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 22.2°F. summers are warm — July averages 74.5°F. Residents experience a substantial 52°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Wayne County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Wayne County closely matches the Iowa statewide average temperature of 48.0°F, it is somewhat wetter than average for Iowa.
Climate Profile
About Wayne County Weather
Wayne County's Humid Midwestern Profile
Wayne County averages 49.8°F annually, putting it just below the national median temperature. It is defined by a continental climate with significant annual moisture.
One of Iowa's Wettest Counties
At 40.4 inches of annual precipitation, Wayne is much wetter than the state average of 36.1 inches. Its annual temperature of 49.8°F remains nearly two degrees warmer than the state average.
Wetter Than Nearby Wapello County
While its temperature of 49.8°F is similar to neighbors, Wayne receives over three inches more rain annually than Wapello County. Specific snowfall data for this county is currently unavailable.
Mild Summers and Cold Winters
Summers are relatively mild for the region, with only 16 days reaching 90°F. Winter brings a January average of 22.2°F, which is slightly warmer than central Iowa neighbors.
Focus on Water Management
With over 40 inches of annual precipitation, sump pumps and proper yard grading are critical for residents. Outdoor planning should account for the 16 days of extreme summer heat.
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.