Frost dates · 26 cities · zones 6a–10a
Arizona frost dates, city by city
Median last spring frost across 26 Arizona cities runs from January 4 in Bullhead City to June 4 in Flagstaff.
1 city has no datable freeze in a typical year — those rows read "frost rare".
| City | Zone | Last frost median | First frost median | Season | Jan → Dec |
|---|---|---|---|---|---|
| Phoenix | 9b | Jan 8 | Dec 25 | 354 d | |
| Tucson | 9b | Feb 5 | Dec 9 | 307 d | |
| Mesa | 9b | Feb 1 | Dec 10 | 312 d | |
| Gilbert | 9b | Feb 1 | Dec 11 | 315 d | |
| Chandler | 9b | Feb 1 | Dec 11 | 315 d | |
| Glendale | 9b | Jan 20 | Dec 15 | 331 d | |
| Scottsdale | 10a | Jan 27 | Dec 21 | 330 d | |
| Peoria | 9b | Feb 5 | Dec 11 | 306 d | |
| Tempe | 10a | Feb 13 | Dec 5 | 298 d | |
| Surprise | 9b | Feb 5 | Dec 11 | 306 d | |
| Goodyear | 9b | Jan 7 | Dec 24 | 351 d | |
| Buckeye | 9b | Jan 7 | Dec 24 | 351 d | |
| Yuma | 10a | frost rare | — | 365 d | |
| Avondale | 9b | Jan 7 | Dec 24 | 351 d | |
| Queen Creek | 9b | Feb 1 | Dec 11 | 315 d | |
| Flagstaff | 6a | Jun 4 | Sep 28 | 115 d | |
| Maricopa | 9a | Feb 23 | Nov 24 | 274 d | |
| Casa Grande | 9a | Feb 5 | Dec 6 | 305 d | |
| Marana | 9b | Apr 2 | Nov 11 | 222 d | |
| Lake Havasu City | 10a | Jan 5 | Dec 29 | 365 d | |
| Prescott Valley | 7b | Apr 30 | Oct 20 | 172 d | |
| Oro Valley | 9a | Apr 2 | Nov 11 | 222 d | |
| Prescott | 7b | Apr 30 | Oct 20 | 172 d | |
| Sierra Vista | 8b | Apr 18 | Nov 1 | 195 d | |
| Apache Junction | 9b | Feb 1 | Dec 10 | 312 d | |
| Bullhead City | 10a | Jan 4 | Dec 23 | 356 d |
Medians from NOAA NCEI 1991–2020 U.S. Climate Normals at each city's nearest qualifying station; zones from the 2023 USDA Plant Hardiness Zone Map. Open a city for the 1-in-10-year dates, the station, and a planting calendar for every sauce crop.
All states →Build a plan from your ZIP →Earliest: Bullhead City (Jan 4) · Latest: Flagstaff (Jun 4)