Arizona frost dates: K
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Kaibeto | Apr 16 | Oct 28 | 195 d | 7b |
| Kayenta | May 7 | Oct 15 | 161 d | 7a |
| Keams Canyon | May 16 | Oct 10 | 147 d | 6b |
| Kearny | Jan 18 | Dec 28 | 344 d | 9b |
| Kingman | Apr 2 | Nov 11 | 223 d | 8b |
| Kingman (Mohave) | Apr 2 | Nov 11 | 223 d | 8b |
| Kirkland | Apr 7 | Nov 12 | 219 d | 8b |
| Kykotsmovi Village | May 16 | Oct 10 | 147 d | 7a |