Tennessee frost dates: S
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Saint Joseph | Mar 29 | Nov 4 | 220 d | 7b |
| Sale Creek | Apr 4 | Oct 31 | 210 d | 7b |
| Saltillo | Mar 31 | Nov 1 | 215 d | 7b |
| Samburg | Apr 3 | Nov 1 | 212 d | 7b |
| Santa Fe | Apr 10 | Oct 27 | 200 d | 7b |
| Sardis | Apr 4 | Oct 30 | 209 d | 7b |
| Saulsbury | Apr 1 | Nov 3 | 216 d | 7b |
| Savannah | Mar 31 | Nov 1 | 215 d | 7b |
| Scotts Hill | Apr 4 | Oct 30 | 209 d | 7b |
| Selmer | Apr 6 | Oct 30 | 207 d | 7b |
| Sequatchie | Apr 10 | Oct 28 | 201 d | 7b |
| Sevierville | Apr 6 | Oct 29 | 206 d | 7b |
| Sewanee | Apr 2 | Nov 4 | 216 d | 7b |
| Seymour | Apr 6 | Oct 29 | 206 d | 7b |
| Shady Valley | Apr 27 | Oct 14 | 170 d | 7a |
| Sharon | Apr 4 | Oct 28 | 207 d | 7b |
| Sharps Chapel | Apr 23 | Oct 19 | 179 d | 7b |
| Shawanee | Apr 23 | Oct 19 | 179 d | 7a |
| Shelbyville | Apr 7 | Oct 29 | 205 d | 7b |
| Sherwood | Apr 7 | Oct 31 | 207 d | 7b |
| Shiloh | Mar 31 | Nov 1 | 215 d | 7b |
| Signal Mountain | Mar 31 | Nov 6 | 220 d | 7b |
| Silerton | Apr 10 | Oct 25 | 198 d | 7b |
| Silver Point | Apr 3 | Nov 4 | 215 d | 7b |
| Slayden | Apr 9 | Nov 1 | 206 d | 7b |
| Smartt | Apr 7 | Oct 30 | 206 d | 7b |
| Smithville | Apr 18 | Oct 22 | 187 d | 7b |
| Smyrna | Apr 13 | Oct 21 | 191 d | 7b |
| Sneedville | Apr 14 | Oct 24 | 193 d | 7a |
| Soddy Daisy | Apr 7 | Oct 29 | 205 d | 7b |
| Somerville | Mar 29 | Nov 3 | 219 d | 8a |
| South Fulton | Apr 4 | Oct 28 | 207 d | 7b |
| South Pittsburg | Apr 7 | Oct 31 | 207 d | 7b |
| Southside | Apr 9 | Nov 1 | 206 d | 7b |
| Sparta | Apr 15 | Oct 23 | 191 d | 7b |
| Speedwell | Apr 23 | Oct 19 | 179 d | 7a |
| Spencer | Apr 21 | Oct 19 | 181 d | 7a |
| Spring City | Apr 11 | Oct 29 | 201 d | 7b |
| Spring Creek | Apr 4 | Oct 30 | 209 d | 7b |
| Spring Hill | Apr 5 | Oct 29 | 207 d | 7b |
| Springfield | Apr 9 | Oct 28 | 202 d | 7a |
| Springville | Apr 8 | Oct 29 | 204 d | 7b |
| Stanton | Mar 29 | Nov 5 | 221 d | 8a |
| Stantonville | Mar 31 | Nov 1 | 215 d | 7b |
| Stewart | Apr 7 | Nov 3 | 210 d | 7b |
| Strawberry Plains | Apr 6 | Oct 29 | 206 d | 7b |
| Sugar Tree | Apr 7 | Oct 29 | 205 d | 7b |
| Summertown | Apr 5 | Oct 28 | 206 d | 7b |
| Summitville | Apr 13 | Oct 24 | 194 d | 7b |
| Sunbright | Apr 21 | Oct 17 | 179 d | 7a |
| Surgoinsville | Apr 14 | Oct 24 | 193 d | 7a |
| Sweetwater | Apr 10 | Oct 27 | 200 d | 7b |