Highland County, Ohio
Local growing conditions for Highland County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 7 ZIP codes in our data.
Hardiness zones in Highland County
Highland County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Highland County for its live forecast, frost dates, and planting calendar:
Greenfield 45123
Highland 45132
Hillsboro 45133
Leesburg 45135
Lynchburg 45142
Mowrystown 45155
Sinking Spring 45172
More for Ohio
- Agriculture in Ohio
- Frost dates across Ohio
- 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.