Pottawattamie County Climate
Pottawattamie County, Iowa
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
49.4°F
Annual Precip
35.3"
Annual Snowfall
27.6"
Extreme Heat Days
20
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5b
Minimum winter temperature range for plant survival
3,216
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Pottawattamie County
Climate Verdict
Pottawattamie County has a cool, averaging 49.4°F annually, moderate rainfall of 35.3 inches per year, rare extreme heat with only 19.7 days above 90°F annually, moderate snowfall of 27.6 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 20.9°F. summers are warm — July averages 74.4°F. Residents experience a substantial 54°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Pottawattamie County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Pottawattamie County closely matches the Iowa statewide average temperature of 48.0°F.
Climate Profile
About Pottawattamie County Weather
Mild Temperatures with Standard Precipitation
Pottawattamie County averages 49.4°F annually, slightly below the national median. The 35.3 inches of annual precipitation reflect a typical continental climate with moisture-rich summers.
Warming Above the Iowa State Average
At 49.4°F, this county is 1.4 degrees warmer than the Iowa state average of 48.0°F. Its annual precipitation of 35.3 inches sits just below the statewide average of 36.1 inches.
Snowier and Cooler Than Southern Page
Pottawattamie is cooler than Page County to its south, which averages 51.0°F. However, Pottawattamie receives 3 more inches of snow annually, making for a slightly more rigorous winter.
Steamy Summers and Moderate Winter Cold
The county experiences 20 days of extreme heat annually, with July temperatures averaging 74.4°F. Winter is characterized by 27.6 inches of snow and a 20.9°F January average.
Expect Variable Winter and Summer Peaks
HVAC systems must be prepared for both the 20 days of extreme heat and the 24.1°F winter average. Proper attic ventilation is recommended to manage the consistent summer humidity.
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.