Hillsborough County, New Hampshire
Local growing conditions for Hillsborough County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 34 ZIP codes in our data.
Hardiness zones in Hillsborough County
Hillsborough County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Hillsborough County for its live forecast, frost dates, and planting calendar:
Hudson 03051
Nashua 03060
Nashua 03062
Nashua 03064
Manchester 03103
Manchester 03109
Amherst 03031
Milford 03033
Francestown 03043
Goffstown 03045
Peterborough 03047
Greenville 03048
Nashua 03049
East Merrimack 03052
East Merrimack 03054
Milford 03055
Klondike Corner 03057
Nashua 03063
New Boston 03070
Greenville 03071
Methuen 03076
Wilton 03082
Greenville 03084
Wilton 03086
More for New Hampshire
- Agriculture in New Hampshire
- Frost dates across New Hampshire
- USDA hardiness zones explained
- Planting calendar by ZIP code
← All counties in New Hampshire
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.