Solano County, California
Local growing conditions for Solano County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 15 ZIP codes in our data.
Hardiness zones in Solano County
Solano County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Solano County for its live forecast, frost dates, and planting calendar:
Benicia 94510
Rio Vista 94512
Fairfield 94533
Fairfield 94534
Fairfield 94535
Rio Vista 94571
Fairfield 94585
Vallejo 94589
Vallejo 94590
Vallejo 94591
Vallejo 94592
Dixon 95620
Elmira 95625
Vacaville 95687
Allendale 95688
More for California
- Agriculture in California
- Frost dates across California
- 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.