Milwaukee County, Wisconsin
Local growing conditions for Milwaukee County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 36 ZIP codes in our data.
Hardiness zones in Milwaukee County
Milwaukee County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Milwaukee County for its live forecast, frost dates, and planting calendar:
West Allis 53214
Milwaukee 53222
Cudahy 53110
Greendale 53129
Hales Corners 53130
Franklin 53132
Oak Creek 53154
South Milwaukee 53172
Milwaukee 53202
Milwaukee 53203
Milwaukee 53204
Milwaukee 53205
Milwaukee 53206
Milwaukee 53207
Milwaukee 53208
Milwaukee 53209
Milwaukee 53210
Shorewood 53211
Milwaukee 53212
Wauwatosa 53213
Milwaukee 53215
Milwaukee 53216
Glendale 53217
Milwaukee 53218
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.