King County, Washington
Local growing conditions for King County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 86 ZIP codes in our data.
Hardiness zones in King County
King County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in King County for its live forecast, frost dates, and planting calendar:
Renton 98057
Seattle 98108
Seattle 98115
Burien 98148
SeaTac 98158
Bryn Mawr-Skyway 98178
Auburn 98001
Auburn 98002
Federal Way 98003
Bellevue 98004
Bellevue 98005
Bellevue 98006
Bellevue 98007
Bellevue 98008
Black Diamond 98010
Bothell 98011
Lake Marcel-Stillwater 98014
Duvall 98019
Greenwater 98022
Federal Way 98023
Fall City 98024
Hobart 98025
Issaquah 98027
Kenmore 98028
More for Washington
- Agriculture in Washington
- Frost dates across Washington
- 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.