Thurston County, Washington
Local growing conditions for Thurston County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 14 ZIP codes in our data.
Hardiness zones in Thurston County
Thurston County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Thurston County for its live forecast, frost dates, and planting calendar:
Tumwater 98501
Olympia 98502
Lacey 98503
Olympia 98505
Olympia 98506
Tumwater 98512
Lacey 98513
Lacey 98516
Bucoda 98530
Rochester 98556
Rainier 98576
Rochester 98579
Tenino 98589
McKenna 98597
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.