Washington County, Utah
Local growing conditions for Washington 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 Washington County
Washington County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Washington County for its live forecast, frost dates, and planting calendar:
La Verkin 84745
New Harmony 84757
Springdale 84767
Central 84722
Enterprise 84725
Veyo 84733
Apple Valley 84737
Ivins 84738
Leeds 84746
Rockville 84763
Veyo 84765
St. George 84770
Toquerville 84774
La Verkin 84779
Washington 84780
Pine Valley 84781
Veyo 84782
Dammeron Valley 84783
Hildale 84784
St. George 84790
More for Utah
- Agriculture in Utah
- Frost dates across Utah
- 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.