Olmsted County, Minnesota
Local growing conditions for Olmsted 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 Olmsted County
Olmsted County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Olmsted County for its live forecast, frost dates, and planting calendar:
Rochester 55901
Rochester 55902
Rochester 55903
Rochester 55904
Rochester 55905
Rochester 55906
Byron 55920
Dover 55929
Elgin 55932
Eyota 55934
Oronoco 55960
Stewartville 55976
More for Minnesota
- Agriculture in Minnesota
- Frost dates across Minnesota
- 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.