Winnebago County, Iowa
Local growing conditions for Winnebago County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 7 ZIP codes in our data.
Hardiness zones in Winnebago County
Winnebago County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Winnebago County for its live forecast, frost dates, and planting calendar:
Buffalo Center 50424
Forest City 50436
Lake Mills 50450
Leland 50453
Rake 50465
Scarville 50473
Thompson 50478
More for Iowa
- Agriculture in Iowa
- Frost dates across Iowa
- 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.