Portage County, Ohio
Local growing conditions for Portage County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 15 ZIP codes in our data.
Hardiness zones in Portage County
Portage County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Portage County for its live forecast, frost dates, and planting calendar:
Atwater 44201
Aurora 44202
Garrettsville 44231
Hiram 44234
Kent 44240
Streetsboro 44241
Kent 44243
Mantua 44255
Suffield 44260
Ravenna 44266
Atwater 44272
South Canal 44285
Windham 44288
Lake Milton 44411
Lake Milton 44412
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.