Hardin County, Kentucky
Local growing conditions for Hardin County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 10 ZIP codes in our data.
Hardiness zones in Hardin County
Hardin County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Hardin County for its live forecast, frost dates, and planting calendar:
Fort Knox 40121
Radcliff 40160
Rineyville 40162
Elizabethtown 42701
Big Clifty 42712
Cecilia 42724
Big Clifty 42732
Sonora 42740
Sonora 42776
Big Clifty 42788
More for Kentucky
- Agriculture in Kentucky
- Frost dates across Kentucky
- USDA hardiness zones explained
- Planting calendar by ZIP code
County growing conditions are compiled from our ZIP-code database, USDA hardiness-zone data, and NOAA climate normals. Conditions vary within a county by elevation and local microclimate. Page updated Aug 4, 2026.