Maricopa County, Arizona
Local growing conditions for Maricopa County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 135 ZIP codes in our data.
Hardiness zones in Maricopa County
Maricopa County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Maricopa County for its live forecast, frost dates, and planting calendar:
Phoenix 85034
Mesa 85208
Tempe 85281
Sun City 85351
Youngtown 85363
Carefree 85377
Phoenix 85003
Phoenix 85004
Phoenix 85006
Phoenix 85007
Phoenix 85008
Phoenix 85009
Phoenix 85012
Phoenix 85013
Phoenix 85014
Phoenix 85015
Phoenix 85016
Phoenix 85017
Phoenix 85018
Phoenix 85019
Phoenix 85020
Phoenix 85021
Phoenix 85022
Phoenix 85023
More for Arizona
- Agriculture in Arizona
- Frost dates across Arizona
- 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.