Gratiot County, Michigan
Local growing conditions for Gratiot County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 14 ZIP codes in our data.
Hardiness zones in Gratiot County
Gratiot County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Gratiot County for its live forecast, frost dates, and planting calendar:
Breckenridge 48615
Breckenridge 48662
Alma 48801
Ashley 48806
Elsie 48807
Riverdale 48832
Ithaca 48847
Perrinton 48856
Ithaca 48862
Perrinton 48871
Perrinton 48874
Riverdale 48877
St. Louis 48880
Elm Hall 48889
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.