Roscommon County, Michigan
Local growing conditions for Roscommon County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 6 ZIP codes in our data.
Hardiness zones in Roscommon County
Roscommon County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Roscommon County for its live forecast, frost dates, and planting calendar:
Houghton Lake 48629
Roscommon 48627
Houghton Lake 48630
Prudenville 48651
Roscommon 48653
St. Helen 48656
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.