Keokuk County Climate
Keokuk County, Iowa
Avg Annual Temp
48.9°F
Annual Precip
37.4"
Annual Snowfall
—
Extreme Heat Days
15.8
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Keokuk County Weather
Keokuk's Balanced Continental Climate
Keokuk County averages 48.9°F annually, sitting comfortably below the national median. It experiences a typical Midwestern cycle of humid summers and snowy, cold winters.
Exceeding State Temperature Norms
The county is slightly warmer than the Iowa state average of 48.0°F. Its annual precipitation of 37.4 inches also exceeds the state norm by more than an inch.
Mid-Range Heat for the Region
Keokuk is cooler than its southern neighbor Jefferson, which sees 24 extreme heat days. Keokuk records only 16 days of 90°F weather, placing it in a more moderate bracket.
Humid Summers and Cold Januarys
The county averages 73.6°F in July, with 16 days hitting 90°F or higher. Winters are cold, with a January average of 20.7°F, though specific annual snowfall totals are currently unavailable.
Prepare for Seasonal Extremes
Residents should service HVAC units to handle the 16 days of extreme summer heat. Though snowfall data is limited, the 20.7°F January average necessitates standard winterization for all homes.
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.