California frost dates: T
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Taft | Jan 24 | Dec 17 | 327 d | 9b |
| Tahoe City | Jun 9 | Sep 25 | 108 d | 7a |
| Tahoe Vista | May 17 | Oct 13 | 149 d | 7a |
| Tahoma | Jun 4 | Oct 3 | 121 d | 6b |
| Talmage | Mar 5 | Nov 21 | 261 d | 9a |
| Tarzana | Jan 24 | Dec 15 | 325 d | 10a |
| Taylorsville | May 22 | Sep 25 | 126 d | 7b |
| Tecate | Apr 30 | Oct 26 | 179 d | 9b |
| Tecopa | Mar 29 | Nov 3 | 219 d | 9a |
| Tehachapi | Apr 28 | Oct 26 | 181 d | 8b |
| Tehama | Feb 22 | Nov 29 | 280 d | 9a |
| Temecula | Feb 2 | Jan 30 | 362 d | 9b |
| Temple City | Jan 4 | Jan 2 | 363 d | 10a |
| Templeton | Mar 15 | Nov 10 | 240 d | 9a |
| Termo | May 28 | Sep 29 | 124 d | 6a |
| Terra Bella | Jan 20 | Dec 13 | 327 d | 9b |
| The Sea Ranch | Feb 26 | Dec 27 | 304 d | 10a |
| Thermal | Feb 7 | Dec 2 | 298 d | 10a |
| Thornton | Feb 9 | Dec 5 | 299 d | 9b |
| Thousand Oaks | Dec 31 | Dec 28 | 362 d | 10a |
| Thousand Palms | Jan 9 | Jan 9 | 365 d | 10a |
| Three Rivers | Mar 16 | Nov 26 | 255 d | 9b |
| Tipton | Feb 15 | Nov 27 | 285 d | 9a |
| Tollhouse | Mar 25 | Dec 3 | 253 d | 9a |
| Toluca Lake | Jan 9 | Jan 5 | 361 d | 10a |
| Tomales | Jan 1 | Dec 31 | 364 d | 9b |
| Topanga | Jan 24 | Dec 15 | 325 d | 10b |
| Topaz | May 12 | Oct 6 | 147 d | 7a |
| Torrance | Jan 9 | Jan 5 | 361 d | 10b |
| Trabuco Canyon | rare frost | 10b | ||
| Tracy | Feb 25 | Nov 26 | 274 d | 9b |
| Tranquillity | Feb 27 | Nov 26 | 272 d | 9a |
| Traver | Feb 20 | Nov 23 | 276 d | 9b |
| Travis Afb | Jan 15 | Dec 14 | 333 d | 9b |
| Tres Pinos | Apr 14 | Nov 2 | 202 d | 9a |
| Trinidad | Mar 8 | Nov 30 | 267 d | 9b |
| Trinity Center | May 20 | Oct 5 | 138 d | 7b |
| Trona | Feb 15 | Nov 28 | 286 d | 9a |
| Truckee | frost any month | 6a | ||
| Tujunga | Dec 31 | Dec 28 | 362 d | 10a |
| Tulare | Jan 23 | Dec 13 | 324 d | 9b |
| Tulelake | Jun 6 | Sep 14 | 100 d | 6b |
| Tuolumne | Apr 9 | Nov 9 | 214 d | 8b |
| Tupman | Feb 9 | Nov 26 | 290 d | 9b |
| Turlock | Jan 6 | Dec 20 | 348 d | 9b |
| Tustin | rare frost | 10a | ||
| Twain | May 18 | Oct 8 | 143 d | 8a |
| Twain Harte | Apr 9 | Nov 9 | 214 d | 8b |
| Twentynine Palms | Jan 24 | Dec 10 | 320 d | 9b |
| Twin Bridges | frost any month | 7a | ||
| Twin Peaks | May 5 | Nov 2 | 181 d | 8a |