Suffolk County, New York
Local growing conditions for Suffolk County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 108 ZIP codes in our data.
Hardiness zones in Suffolk County
Suffolk County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Suffolk County for its live forecast, frost dates, and planting calendar:
Mount Sinai 11766
Fishers Island 06390
Amityville 11701
Gilgo 11702
North Babylon 11703
West Babylon 11704
Bayport 11705
Bay Shore 11706
North Bellport 11713
Blue Point 11715
Bohemia 11716
Brentwood 11717
Brightwaters 11718
Brookhaven 11719
Centereach 11720
Centerport 11721
Central Islip 11722
Cold Spring Harbor 11724
Commack 11725
Copiague 11726
Coram 11727
Deer Park 11729
East Islip 11730
Commack 11731
More for New York
- Agriculture in New York
- Frost dates across New York
- 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.