Marshall County, Iowa
Local growing conditions for Marshall 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 Marshall County
Marshall County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Marshall County for its live forecast, frost dates, and planting calendar:
Albion 50005
Clemons 50051
Ferguson 50078
Gilman 50106
Haverhill 50120
Laurel 50141
Le Grand 50142
Liscomb 50148
Marshalltown 50158
Melbourne 50162
Rhodes 50234
St. Anthony 50239
State Center 50247
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.