Whitman County, Idaho
Local growing conditions for Whitman County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 20 ZIP codes in our data.
Hardiness zones in Whitman County
Whitman County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Whitman County for its live forecast, frost dates, and planting calendar:
Lamont 99017
Tekoa 99033
Albion 99102
Colfax 99111
Colton 99113
Endicott 99125
Farmington 99128
Garfield 99130
LaCrosse 99136
LaCrosse 99143
Malden 99149
Oakesdale 99158
Palouse 99161
Pullman 99163
Rosalia 99170
St. John 99171
Steptoe 99174
Steptoe 99176
Uniontown 99179
Washtucna 99333
More for Idaho
- Agriculture in Idaho
- Frost dates across Idaho
- 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.