Clayton County, Iowa
Local growing conditions for Clayton County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 15 ZIP codes in our data.
Hardiness zones in Clayton County
Clayton County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Clayton County for its live forecast, frost dates, and planting calendar:
Colesburg 52035
Edgewood 52042
Elkader 52043
Elkport 52044
Farmersburg 52047
Garber 52048
Garnavillo 52049
Guttenberg 52052
North Buena Vista 52066
St. Olaf 52072
Strawberry Point 52076
Volga 52077
Luana 52156
McGregor 52157
Marquette 52158
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.