Ozaukee County, Wisconsin
Local growing conditions for Ozaukee 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 Ozaukee County
Ozaukee County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Ozaukee County for its live forecast, frost dates, and planting calendar:
Belgium 53004
Cedarburg 53012
Waubeka 53021
Grafton 53024
Port Washington 53074
Saukville 53080
Mequon 53092
Mequon 53097
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.