Boone County Climate
Boone County, Indiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
51.5°F
Annual Precip
42.2"
Annual Snowfall
18.0"
Extreme Heat Days
14
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
3,307
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Boone County
Climate Verdict
Boone County has a mild, with an average annual temperature of 51.5°F, moderately wet with 42.2 inches of annual precipitation, rare extreme heat with only 14.4 days above 90°F annually, light snow averaging 18.0 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 26.1°F. summers are warm — July averages 73.2°F. The 47°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Boone County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Boone County closely matches the Indiana statewide average temperature of 52.4°F, it is somewhat drier than average for Indiana.
Climate Profile
About Boone County Weather
Balanced Humid Continental Weather Patterns
Boone County's 51.5°F average annual temperature is just below the national median. This humid continental area experiences a balanced mix of seasonal extremes.
Tracking Closely With State Averages
Boone tracks slightly cooler than the Indiana state average of 52.2°F. Its 42.2 inches of annual precipitation is close to the statewide norm of 43.9 inches.
Cooler and Drier Than Bartholomew
Boone is cooler and drier than its southern neighbor Bartholomew, which averages 54.1°F. It sees significantly less snow than northern counties, with only 18 inches annually.
Pleasant Summers and Moderate Snowfall
July averages a pleasant 73.2°F with 14 days of extreme heat. Winters are cold but not excessively snowy, averaging 18.0 inches of snow and a 26.1°F January low.
Balanced HVAC for Year-Round Comfort
Homeowners should balance their HVAC needs between the 14 days of high heat and the cold 29.1°F winter average. Modern insulation helps manage the moderate 18 inches of snowfall.
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.