Arizona frost dates: A
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Aguila | Mar 17 | Nov 19 | 247 d | 9a |
| Ajo | Jan 10 | Dec 21 | 345 d | 9b |
| Alpine | Jun 15 | Sep 21 | 98 d | 6b |
| Amado | Apr 5 | Nov 10 | 219 d | 8b |
| Apache Junction | Feb 11 | Dec 10 | 302 d | 9b |
| Arivaca | Mar 21 | Nov 20 | 244 d | 8b |
| Arizona City | Feb 28 | Nov 21 | 266 d | 9a |
| Arlington | Jan 21 | Dec 15 | 328 d | 9b |
| Ash Fork | May 22 | Oct 5 | 136 d | 7a |
| Avondale | Jan 7 | Dec 24 | 351 d | 9b |