Kennebec County, Maine
Local growing conditions for Kennebec County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 26 ZIP codes in our data.
Hardiness zones in Kennebec County
Kennebec County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Kennebec County for its live forecast, frost dates, and planting calendar:
Gardiner 04345
Winthrop 04259
Winthrop 04265
Winthrop 04284
Augusta 04330
Hallowell 04344
Randolph 04346
Hallowell 04347
Livermore Falls 04349
Gardiner 04350
Augusta 04351
Winthrop 04352
Winthrop 04355
Augusta 04358
Gardiner 04359
Farmington 04360
Augusta 04363
Winthrop 04364
Winslow 04901
Winslow 04910
Oakland 04917
Oakland 04918
Winslow 04926
Clinton 04927
More for Maine
- Agriculture in Maine
- Frost dates across Maine
- 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.