Minnesota frost dates: T
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Taconite | May 17 | Sep 24 | 130 d | 4a |
| Talmoon | May 14 | Oct 2 | 141 d | 3b |
| Tamarack | May 31 | Sep 18 | 110 d | 4a |
| Taopi | May 6 | Oct 1 | 148 d | 4b |
| Taunton | May 2 | Oct 5 | 156 d | 5a |
| Taylors Falls | May 19 | Sep 25 | 129 d | 4a |
| Tenstrike | May 24 | Sep 17 | 116 d | 3b |
| Thief River Falls | May 14 | Sep 28 | 137 d | 4a |
| Tintah | May 3 | Oct 3 | 153 d | 4a |
| Tofte | May 26 | Sep 27 | 124 d | 3b |
| Tower | frost any month | 3a | ||
| Tracy | May 2 | Oct 5 | 156 d | 5a |
| Trail | May 15 | Sep 26 | 134 d | 3b |
| Trimont | Apr 28 | Oct 8 | 163 d | 5a |
| Truman | Apr 25 | Oct 14 | 172 d | 5a |
| Twig | May 18 | Oct 1 | 136 d | 4a |
| Twin Lakes | Apr 27 | Oct 9 | 165 d | 5a |
| Twin Valley | May 11 | Sep 27 | 139 d | 4a |
| Two Harbors | May 12 | Oct 6 | 147 d | 3b |
| Tyler | May 4 | Oct 2 | 151 d | 4b |