Martin County, Minnesota
Local growing conditions for Martin County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 11 ZIP codes in our data.
Hardiness zones in Martin County
Martin County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Martin County for its live forecast, frost dates, and planting calendar:
Fairmont 56031
Granada 56039
Northrop 56075
Truman 56088
Ceylon 56121
Dunnell 56127
Odin 56160
Ormsby 56162
Sherburn 56171
Trimont 56176
Welcome 56181
More for Minnesota
- Agriculture in Minnesota
- Frost dates across Minnesota
- 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.