Kittitas County, Washington
Local growing conditions for Kittitas County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 10 ZIP codes in our data.
Hardiness zones in Kittitas County
Kittitas County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Kittitas County for its live forecast, frost dates, and planting calendar:
Snoqualmie Pass 98068
Cle Elum 98922
Easton 98925
Kittitas 98926
Kittitas 98934
Roslyn 98940
Roslyn 98941
South Cle Elum 98943
Thorp 98946
Schwana 98950
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.