Keokuk County Climate
Keokuk County, Iowa
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
48.9°F
Annual Precip
37.4"
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
3,046
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Keokuk County
Climate Verdict
Keokuk County has a cool, averaging 48.9°F annually, moderate rainfall of 37.4 inches per year, rare extreme heat with only 15.8 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 20.7°F. summers are warm — July averages 73.6°F. Residents experience a substantial 53°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Keokuk County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Keokuk County closely matches the Iowa statewide average temperature of 48.0°F.
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 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.