Calendars by city / AZ
Phoenix, Arizona vegetable planting calendar
Planting windows for Phoenix, Arizona built from the NOAA 1991–2020 freeze normals at PHOENIX AIRPORT, AZ US (station USW00023183), not from a hardiness zone.
No frost-based calendar for this station. NOAA reports a 28°F freeze too rare to compute a normal (-666). The 32°F dates (Jan 6 / Jan 2) indicate an essentially year-round frost-free season; frost-offset rules are not meaningful here, so this page shows the station data and flags the limitation instead of generating a calendar.
Station data
| NOAA station | PHOENIX AIRPORT, AZ US (USW00023183) |
|---|---|
| Location | 33.4277, -112.0038 · elevation 337.4 m |
| Last spring 32°F (50%) | Jan 6 |
| First fall 32°F (50%) | Jan 2 |
| Retrieved | 2026-10-16 |
In a climate with no reliable frost season, planting is governed by heat and daylength rather than frost. A frost-offset rule set would produce misleading dates here, so this page stops at the data. If you know a frost date that applies to your own site, the planner tool accepts custom dates.
Nearby calendars
- San Diego, California
- Los Angeles, California
- Salt Lake City, Utah — last spring frost Apr 21
- Denver, Colorado — last spring frost May 6
Read the method behind these dates: last frost date vs hardiness zone.