Clay County Climate
Clay County, Indiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
52.8°F
Annual Precip
49.7"
Annual Snowfall
15.8"
Extreme Heat Days
18
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Clay County
Climate Verdict
Clay County has a mild, with an average annual temperature of 52.8°F, moderately wet with 49.7 inches of annual precipitation, rare extreme heat with only 17.5 days above 90°F annually, light snow averaging 15.8 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 28.7°F. summers are warm — July averages 74.7°F. The 46°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Clay County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Clay County closely matches the Indiana statewide average temperature of 52.4°F, it is also noticeably wetter, receiving 5.5 inches more precipitation than the state average.
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.