Palo Alto County, Iowa
Local growing conditions for Palo Alto County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 8 ZIP codes in our data.
Hardiness zones in Palo Alto County
Palo Alto County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Palo Alto County for its live forecast, frost dates, and planting calendar:
Ayrshire 50515
Curlew 50527
Cylinder 50528
Emmetsburg 50536
Mallard 50562
West Bend 50597
Graettinger 51342
Ruthven 51358
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.