Okanogan County, Washington
Local growing conditions for Okanogan County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 19 ZIP codes in our data.
Hardiness zones in Okanogan County
Okanogan County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Okanogan County for its live forecast, frost dates, and planting calendar:
Brewster 98812
Methow 98814
Conconully 98819
Loomis 98827
Malott 98829
Winthrop 98833
Methow 98834
Okanogan 98840
Disautel 98841
Oroville 98844
Pateros 98846
North Omak 98849
Tonasket 98855
Twisp 98856
Curlew Lake 98859
Winthrop 98862
Elmer City 99116
Elmer City 99124
Nespelem Community 99155
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.