Fremont County Climate
Fremont County, Iowa
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
50.7°F
Annual Precip
34.2"
Annual Snowfall
22.3"
Extreme Heat Days
24
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5b
Minimum winter temperature range for plant survival
3,386
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Fremont County
Climate Verdict
Fremont County has a mild, with an average annual temperature of 50.7°F, moderate rainfall of 34.2 inches per year, occasional hot days — 24.4 per year above 90°F, moderate snowfall of 22.3 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 22.8°F. summers are warm — July averages 75.4°F. Residents experience a substantial 53°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Fremont County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Fremont County closely matches the Iowa statewide average temperature of 48.0°F.
Climate Profile
About Fremont County Weather
Warmer than the Iowa norm
Fremont County averages 50.7°F annually, which is much closer to the national median than its northern neighbors. The area receives 34.2 inches of annual precipitation, making it slightly drier than the U.S. average.
One of Iowa's warmest counties
Fremont's 50.7°F average temperature is significantly higher than the state average of 48.0°F. It is one of the few Iowa counties to average over 50 degrees annually.
Milder winters than Central Iowa
Compared to Guthrie County's 48.4°F average, Fremont is notably warmer at 50.7°F. It also sees far less snow than northern counties, recording only 22.3 inches annually.
Hot summers and lighter snow
Summers are intense here, with 24 days reaching 90°F or higher. Winters are milder than the rest of the state, with a January average of 22.8°F and only 22.3 inches of snow.
Invest in heavy-duty cooling
Due to the 24 days of extreme heat, a high-performance air conditioning system is a critical investment. Residents can expect shorter winter heating seasons compared to northern Iowa counties.
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.