Wayne County Climate
Wayne County, Iowa
Avg Annual Temp
49.8°F
Annual Precip
40.4"
Annual Snowfall
—
Extreme Heat Days
16.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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 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.