Lyon County Climate
Lyon County, Kentucky
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
60.9°F
Annual Precip
53.1"
Annual Snowfall
—
Extreme Heat Days
50
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7a
Minimum winter temperature range for plant survival
5,132
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Lyon County
Climate Verdict
Lyon County has a warm, averaging 60.9°F year-round, moderately wet with 53.1 inches of annual precipitation, occasional hot days — 49.9 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 38.8°F. summers are hot, with July averaging 80.4°F. The 42°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
Lyon County is 4.9°F warmer than the Kentucky statewide average of 56.0°F, it is somewhat wetter than average for Kentucky, the county experiences 20.234065934065935 more extreme heat days than the state average.
Climate Profile
About Lyon County Weather
Subtropical influence and high warmth
Lyon County is exceptionally warm for the region, averaging 60.9°F annually. This temperature is significantly higher than the national median, reflecting a deep subtropical influence.
The group's warmest county
Lyon is the warmest in this group, sitting 4.7 degrees above the Kentucky state average. It also sees 50 extreme heat days, more than double the frequency of most other Kentucky counties.
Hottest in the regional set
Compared to Livingston, Lyon is nearly 4 degrees warmer and sees 12 more extreme heat days. It is the hottest county in this regional set, with July averages topping 80°F.
Extreme summer heat, mild winters
Summer is long and hot, featuring 50 days of 90°F weather and a 79.2°F average. Winters are the mildest in the region, staying well above freezing with a 41.3°F average.
Invest in heavy-duty cooling
This climate demands heavy-duty cooling systems and heat-tolerant landscaping. Prepare for 50 days of extreme heat and ensure outdoor activities are scheduled for early morning or late evening.
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.