Josephine County, Oregon
Local growing conditions for Josephine 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 Josephine County
Josephine County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Josephine County for its live forecast, frost dates, and planting calendar:
Glendale 97497
O'Brien 97523
Merlin 97526
New Hope 97527
Kerby 97531
Merlin 97532
O'Brien 97534
Selma 97538
Selma 97543
Williams 97544
More for Oregon
- Agriculture in Oregon
- Frost dates across Oregon
- 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.