Darke County, Ohio
Local growing conditions for Darke County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 16 ZIP codes in our data.
Hardiness zones in Darke County
Darke County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Darke County for its live forecast, frost dates, and planting calendar:
Greenville 45331
Ansonia 45303
Arcanum 45304
Bradford 45308
Gettysburg 45328
Hollansburg 45332
New Madison 45346
New Weston 45348
North Star 45350
Osgood 45351
Palestine 45352
Pitsburg 45358
Rossburg 45362
Versailles 45380
Yorkshire 45388
Union City 45390
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.