Grafton County, New Hampshire
Local growing conditions for Grafton County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 36 ZIP codes in our data.
Hardiness zones in Grafton County
Grafton County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Grafton County for its live forecast, frost dates, and planting calendar:
Canaan 03240
Fairlee 03282
Lebanon 03784
Bartlett 03215
Plymouth 03217
Bristol 03222
Plymouth 03223
North Haverhill 03238
Plymouth 03241
Ashland 03245
Lincoln 03251
North Woodstock 03262
Plymouth 03264
Plymouth 03266
North Woodstock 03279
North Woodstock 03285
North Woodstock 03293
Littleton 03561
Bethlehem 03574
Lincoln 03580
Lisbon 03585
Lisbon 03586
Woodsville 03740
Canaan 03741
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.