Maine frost dates: K
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Kenduskeag | May 4 | Oct 4 | 153 d | 5a |
| Kennebunk | May 9 | Oct 3 | 147 d | 5b |
| Kennebunkport | May 9 | Oct 3 | 147 d | 6a |
| Kents Hill | May 11 | Sep 29 | 141 d | 5b |
| Kingfield | May 13 | Sep 30 | 140 d | 5a |
| Kingman | May 25 | Sep 24 | 122 d | 5a |
| Kittery | May 4 | Oct 8 | 157 d | 6a |
| Kittery Point | May 4 | Oct 8 | 157 d | 6b |