Knox County Climate
Knox County, Kentucky
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
56.0°F
Annual Precip
53.8"
Annual Snowfall
—
Extreme Heat Days
29
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7a
Minimum winter temperature range for plant survival
3,895
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Knox County
Climate Verdict
Knox County has a mild, with an average annual temperature of 56.0°F, moderately wet with 53.8 inches of annual precipitation, occasional hot days — 29.1 per year above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 34.9°F. summers are warm — July averages 75.9°F. The 41°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Knox County closely matches the Kentucky statewide average temperature of 56.0°F, it is somewhat wetter than average for Kentucky.
Climate Profile
About Knox County Weather
Above average heat and moisture
Knox County averages 56.0°F annually, which is slightly warmer than the national median. Its humid subtropical climate brings heavy annual rainfall to the southeastern Kentucky hills.
Typical temperatures but higher rain
Knox matches the state average temperature of 56.2°F almost perfectly at 56.0°F. However, it is much wetter than the state average, receiving 53.8 inches of rain compared to the Kentucky norm of 50.6.
Wetter than Johnson County
Knox County is significantly wetter than Johnson County, receiving over 7 inches more rain annually. It also experiences more extreme heat, with 29 days over 90°F compared to Johnson's 25.
Warm summers and wet winters
Summers reach a July average of 75.9°F and include 29 days of extreme heat. Winters are moderate with a January average of 34.9°F, though the 53.8 inches of annual rain means many wet winter days.
Invest in high-quality rain gear
With 53.8 inches of annual precipitation, waterproof gear and home drainage systems are vital. Prepare for 29 days of extreme summer heat by servicing your HVAC system early in the spring.
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.