Newport County, Rhode Island
Local growing conditions for Newport County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 8 ZIP codes in our data.
Hardiness zones in Newport County
Newport County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Newport County for its live forecast, frost dates, and planting calendar:
Newport 02835
Newport 02840
Newport 02841
Newport East 02842
Tiverton 02878
Newport East 02837
Melville 02871
Melville 02872
More for Rhode Island
- Agriculture in Rhode Island
- Frost dates across Rhode Island
- USDA hardiness zones explained
- Planting calendar by ZIP code
← All counties in Rhode Island
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.