Shiawassee County, Michigan
Local growing conditions for Shiawassee County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 12 ZIP codes in our data.
Hardiness zones in Shiawassee County
Shiawassee County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Shiawassee County for its live forecast, frost dates, and planting calendar:
Bancroft 48414
Byron 48418
Durand 48429
Lennon 48449
New Lothrop 48460
Vernon 48476
Corunna 48817
Henderson 48841
Laingsburg 48848
Morrice 48857
Owosso 48867
Perry 48872
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.