Muscatine County Climate
Muscatine County, Iowa
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
50.3°F
Annual Precip
39.1"
Annual Snowfall
26.4"
Extreme Heat Days
20
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5b
Minimum winter temperature range for plant survival
3,302
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Muscatine County
Climate Verdict
Muscatine County has a mild, with an average annual temperature of 50.3°F, moderate rainfall of 39.1 inches per year, rare extreme heat with only 19.85 days above 90°F annually, moderate snowfall of 26.4 inches 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 Muscatine County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Muscatine County closely matches the Iowa statewide average temperature of 48.0°F, it is somewhat wetter than average for Iowa.
Climate Profile
About Muscatine County Weather
Wet and Temperate for Iowa
Muscatine County averages 50.3°F annually, which is cooler than the national median but high for the state. It is relatively wet, receiving 39.1 inches of precipitation.
Warmer and Wetter Than Average
The county is 2.3 degrees warmer than the 48.0°F Iowa state average. It also exceeds the state average precipitation by 3 inches per year.
Damp and Mild Regionally
Muscatine is much wetter than Monona County and warmer than Mitchell County. Its 26.4 inches of snow is lower than most northern Iowa neighbors.
Twenty Days of Extreme Heat
Summer temperatures peak at a July average of 74.5°F with 20 days over 90°F. Winters feature a 25.6°F average and 26.4 inches of snowfall.
Manage the High Humidity
The 39.1 inches of precipitation and warm summers mean residents should plan for humidity and moisture control. Winter preparation is less about snow and more about the 22.2°F January lows.
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.