Delta County, Michigan
Local growing conditions for Delta County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 10 ZIP codes in our data.
Hardiness zones in Delta County
Delta County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Delta County for its live forecast, frost dates, and planting calendar:
Escanaba 49807
Manistique 49817
Escanaba 49829
Garden 49835
Gladstone 49837
Garden 49864
Rock 49872
Rapid River 49878
Escanaba 49894
Munising 49895
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.