Harrison County Climate
Harrison County, Kentucky
Avg Annual Temp
54.8°F
Annual Precip
47.7"
Annual Snowfall
—
Extreme Heat Days
28.5
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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 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.