Knox County Climate
Knox County, Kentucky
Avg Annual Temp
56.0°F
Annual Precip
53.8"
Annual Snowfall
—
Extreme Heat Days
29.1
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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 source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.