Washburn County, Wisconsin
Local growing conditions for Washburn County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 7 ZIP codes in our data.
Hardiness zones in Washburn County
Washburn County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Washburn County for its live forecast, frost dates, and planting calendar:
Spooner 54801
Birchwood 54817
Minong 54859
Shell Lake 54870
Shell Lake 54871
Springbrook 54875
Trego 54888
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.