Harrison County Climate
Harrison County, Kentucky
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
54.8°F
Annual Precip
47.7"
Annual Snowfall
—
Extreme Heat Days
29
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
3,758
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Harrison County
Climate Verdict
Harrison County has a mild, with an average annual temperature of 54.8°F, moderately wet with 47.7 inches of annual precipitation, occasional hot days — 28.5 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 76.0°F. The 44°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Harrison County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Harrison County closely matches the Kentucky statewide average temperature of 56.0°F, it is somewhat drier than average for Kentucky.
Climate Profile
About Harrison County Weather
Moderate Temperatures and High Annual Rain
Harrison County's 54.8°F annual average temperature is typical for the U.S. interior. However, its 47.7 inches of annual precipitation is well above the national median, ensuring a lush landscape.
Slightly Drier and Cooler Than Average
Harrison is cooler than the state average of 56.2°F and drier than the state average of 50.6 inches. It sits in a transitional zone where it misses some of the heavier southern rains.
Cold Winters Compared to the South
With a January average of 32.0°F, Harrison is colder in mid-winter than Green County. It also faces 29 extreme heat days, placing it in the middle of the pack for temperature extremes in Kentucky.
Chilly Januaries and Warm Julys
The county experiences a July average of 76.0°F with nearly a month's worth of days over 90°F. January is the coldest month, averaging exactly 32.0°F, which creates frequent freeze-thaw cycles during the winter.
Year-Round Climate Control is Key
A reliable HVAC system is necessary to navigate both the freezing 32°F January nights and the 29 days of summer heat. Residents should also prepare for a mix of winter precipitation given the freezing average temperature in January.
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.