Warren County Climate
Warren County, Ohio
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
52.7°F
Annual Precip
43.4"
Annual Snowfall
14.4"
Extreme Heat Days
22
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
3,407
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Warren County
Climate Verdict
Warren County has a mild, with an average annual temperature of 52.7°F, moderately wet with 43.4 inches of annual precipitation, occasional hot days — 21.5 per year above 90°F, light snow averaging 14.4 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 29.4°F. summers are warm — July averages 74.6°F. The 45°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Warren County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Warren County closely matches the Ohio statewide average temperature of 51.5°F, it is somewhat wetter than average for Ohio.
Climate Profile
About Warren County Weather
Typical mid-latitude warmth
Warren County’s 52.7°F average temperature sits just below the national median. It enjoys a slightly longer growing season than many of its northern Ohio counterparts.
One of Ohio's warmer counties
Warren County stays 1.2 degrees warmer than the Ohio average of 51.5°F. It also receives 43.4 inches of precipitation, making it slightly wetter than the state norm.
Warmer and drier than Washington
Warren averages 52.7°F, which is slightly cooler than Washington County’s 53.3°F. However, Warren receives significantly less snow, totaling only 14.4 inches annually.
Significant summer heat peaks
Summer is intense here, with 22 days reaching 90°F or higher, the highest in this group. Winters are milder than northern Ohio, with only 14.4 inches of annual snowfall.
Invest in high-capacity cooling
With 22 days of extreme heat, air conditioning is a critical health and comfort requirement. Lower snowfall totals mean light-duty clearing tools are usually sufficient for winter.
Frequently Asked Questions
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Track your own weather in Warren 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.