Mason County Climate
Mason County, Kentucky
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
54.7°F
Annual Precip
48.3"
Annual Snowfall
—
Extreme Heat Days
26
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
3,760
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Mason County
Climate Verdict
Mason County has a mild, with an average annual temperature of 54.7°F, moderately wet with 48.3 inches of annual precipitation, occasional hot days — 26.1 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 32.0°F. summers are warm — July averages 75.9°F. The 44°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Mason County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Mason County closely matches the Kentucky statewide average temperature of 56.0°F, it is somewhat drier than average for Kentucky.
Climate Profile
About Mason County Weather
Cooler Midwestern Influence on the River
Mason County's 54.7°F annual average reflects its northern position along the Ohio River. This makes it slightly cooler than the national median temperature for mid-latitude counties.
Among Kentucky's Cooler Northern Counties
The county is significantly cooler than the Kentucky state average of 56.2°F. Its northern latitude leads to shorter summers and more pronounced winter chill.
Cooler and Drier than the South
Mason County is roughly four degrees cooler on average than western Marshall County. Its 48.3 inches of rain also falls below the state average of 50.6 inches.
Crisp Winters and Moderate Heat
January is cold with an average of 32.0°F, while July stays relatively mild at 75.9°F. The county sees only 26 extreme heat days, far fewer than the southern parts of the state.
Prepare for Freezing River Winds
Residents should prioritize winter weatherization given that average January temperatures hover at the freezing mark. Reliable heating and moisture control for the 48 inches of rain are essential for home maintenance.
Frequently Asked Questions
What is the average temperature in Mason County?
How much rain does Mason County get?
How hot does Mason County get in summer?
How cold are winters in Mason County?
Track your own weather in Mason County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.