Hunterdon County, New Jersey
Local growing conditions for Hunterdon County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 20 ZIP codes in our data.
Hardiness zones in Hunterdon County
Hunterdon County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Hunterdon County for its live forecast, frost dates, and planting calendar:
Califon 07830
Pottersville 07979
Lambertville 08530
Ringoes 08551
Stockton 08559
Clinton 08801
Asbury 08802
Bloomsbury 08804
Clinton 08809
Flemington 08822
Frenchtown 08825
Glen Gardner 08826
Glen Gardner 08827
High Bridge 08829
Lebanon 08833
Milford 08848
Oldwick 08858
Clinton 08867
Three Bridges 08887
White House Station 08889
More for New Jersey
- Agriculture in New Jersey
- Frost dates across New Jersey
- 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.