Frost dates for Phoenix, Arizona
In a typical year, Phoenix’s last spring frost lands around Jan 21 and the first fall frost around Dec 16, a growing season of about 329 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 10a.
| Odds | Last spring frost | First fall frost |
|---|---|---|
| 10 percent | Dec 24 | Nov 29 |
| 50 percent | Jan 21 | Dec 16 |
| 90 percent | Feb 20 | Jan 9 |
A 10 percent year is an early year, a 90 percent year a late one. Frost-sensitive planting usually waits for the 90 percent side of the last-frost band.
Soil in Phoenix is typically around 88°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.
Plantable now in Phoenix
- Hot pepper (Cayenne)
- Radicchio (Rossa di Verona)
- Fava bean (Aquadulce)
- Escarole (Batavian Full Heart)
- Fennel (Trieste)
- Endive (Green Curled Endive)
- Onion (Vidalia)
- Parsnip (Hollow Crown)
Timing comes from the same temperature engine the app uses, run against Phoenix’s normals for today.
Nearby cities
- Tempe, AZ (around Feb 13 to Dec 5)
- Glendale, AZ (around Jan 20 to Dec 15)
- Scottsdale, AZ (around Feb 13 to Dec 5)
- Peoria, AZ (around Jan 20 to Dec 15)
- Chandler, AZ (around Feb 13 to Dec 5)
Row & Bed is a plant reference built around your garden: your zone, your frost dates, your forecast, and a cited page for every variety in your beds.
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