Hillsdale County, Michigan
Local growing conditions for Hillsdale County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 13 ZIP codes in our data.
Hardiness zones in Hillsdale County
Hillsdale County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Hillsdale County for its live forecast, frost dates, and planting calendar:
Allen 49227
Lake Seneca 49232
Hillsdale 49242
Lake LeAnn 49249
Jonesville 49250
Litchfield 49252
Litchfield 49258
North Adams 49262
Pittsford 49266
Pittsford 49271
Reading 49274
Lake LeAnn 49282
Waldron 49288
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.