Monroe County, Michigan
Local growing conditions for Monroe County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 17 ZIP codes in our data.
Hardiness zones in Monroe County
Monroe County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Monroe County for its live forecast, frost dates, and planting calendar:
Milan 48160
Carleton 48117
Dundee 48131
Luna Pier 48133
Ida 48140
Lambertville 48144
Luna Pier 48145
Luna Pier 48157
Maybee 48159
West Monroe 48161
Monroe 48162
Estral Beach 48166
Temperance 48177
South Rockwood 48179
Temperance 48182
Sylvania 49267
Petersburg 49270
More for Michigan
- Agriculture in Michigan
- Frost dates across Michigan
- 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.