Cedar County Climate
Cedar County, Iowa
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
49.1°F
Annual Precip
38.0"
Annual Snowfall
39.8"
Extreme Heat Days
15
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
3,141
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Cedar County
Climate Verdict
Cedar County has a cool, averaging 49.1°F annually, moderate rainfall of 38.0 inches per year, rare extreme heat with only 14.6 days above 90°F annually, moderate snowfall of 39.8 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 20.3°F. summers are warm — July averages 73.8°F. Residents experience a substantial 53°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Cedar County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Cedar County closely matches the Iowa statewide average temperature of 48.0°F.
Climate Profile
About Cedar County Weather
Warm and Wet Eastern Iowa
Cedar County averages 49.1°F annually, making it nearly as warm as Cass County and closer to the 53°F national median. It is characterized by high humidity and significant seasonal precipitation.
High Precipitation and Above Average Heat
The county exceeds the state average temperature of 48.0°F by 1.1 degrees. It also receives 38.0 inches of precipitation, nearly two inches more than the Iowa average.
The Snowiest in the Region
While it shares a 49.1°F average temperature with southern neighbors, it records a substantial 39.8 inches of snowfall. This is significantly higher than the 27.3 inches seen in Cass County.
Hot Summers and Heavy Snow
Summer temperatures average 72.1°F with 15 days over 90°F. Despite the warmth, winter brings nearly 40 inches of snow and a January average of 20.3°F.
Ready the Heavy Snow Equipment
With almost 40 inches of annual snowfall, a heavy-duty snowblower is a vital investment for local residents. The 38 inches of total precipitation also means checking sump pumps before the spring thaw is essential.
Frequently Asked Questions
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Track your own weather in Cedar County
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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.