Iowa County, Wisconsin
Local growing conditions for Iowa 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 Iowa County
Iowa County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Iowa County for its live forecast, frost dates, and planting calendar:
Arena 53503
Avoca 53506
Barneveld 53507
Cobb 53526
Dodgeville 53533
Highland 53543
Hollandale 53544
Linden 53553
Mineral Point 53565
Rewey 53580
Ridgeway 53582
More for Wisconsin
- Agriculture in Wisconsin
- Frost dates across Wisconsin
- 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.