Butler County, Iowa
Local growing conditions for Butler County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 11 ZIP codes in our data.
Hardiness zones in Butler County
Butler County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Butler County for its live forecast, frost dates, and planting calendar:
Allison 50602
Aplington 50604
Aplington 50608
Bristow 50611
Clarksville 50619
Dumont 50625
Greene 50636
Aplington 50649
New Hartford 50660
Parkersburg 50665
Shell Rock 50670
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.