Warren County, Iowa
Local growing conditions for Warren 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 Warren County
Warren County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Warren County for its live forecast, frost dates, and planting calendar:
Ackworth 50001
Carlisle 50047
Hartford 50118
Indianola 50125
Lacona 50139
Lacona 50145
Martensdale 50160
Milo 50166
New Virginia 50210
Norwalk 50211
Bevington 50229
St. Marys 50241
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.