Imperial County, California
Local growing conditions for Imperial 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 Imperial County
Imperial County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Imperial County for its live forecast, frost dates, and planting calendar:
Buckshot 92222
Brawley 92227
Calexico 92231
Calipatria 92233
El Centro 92243
Calexico 92249
El Centro Naval Air Facility 92251
Ocotillo 92259
Seeley 92273
Salton City 92275
Westmorland 92281
Yuma 92283
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.