Texas frost dates: S
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Sabinal | Mar 6 | Nov 20 | 259 d | 9a |
| Sabine Pass | Feb 14 | Dec 7 | 296 d | 9b |
| Sachse | Mar 10 | Nov 19 | 254 d | 8b |
| Sacul | Mar 7 | Nov 25 | 263 d | 8b |
| Sadler | Mar 14 | Nov 19 | 250 d | 8a |
| Saint Hedwig | Feb 21 | Dec 5 | 287 d | 9a |
| Saint Jo | Mar 24 | Nov 8 | 229 d | 8a |
| Salado | Mar 14 | Nov 20 | 251 d | 8b |
| Salineno | Jan 9 | Jan 1 | 357 d | 9b |
| Salt Flat | Apr 17 | Oct 25 | 191 d | 8a |
| Saltillo | Mar 15 | Nov 16 | 246 d | 8b |
| Samnorwood | Apr 9 | Oct 30 | 204 d | 7b |
| San Angelo | Mar 20 | Nov 10 | 235 d | 8a |
| San Antonio | Feb 25 | Nov 28 | 276 d | 9a |
| San Augustine | Mar 18 | Nov 13 | 240 d | 8b |
| San Benito | Jan 9 | Jan 3 | 359 d | 10a |
| San Diego | Jan 29 | Dec 29 | 334 d | 9b |
| San Elizario | Mar 21 | Nov 6 | 230 d | 8b |
| San Felipe | Feb 28 | Nov 30 | 275 d | 9a |
| San Isidro | Jan 22 | Dec 19 | 331 d | 9b |
| San Juan | Jan 9 | Jan 1 | 357 d | 10a |
| San Marcos | Feb 28 | Nov 29 | 274 d | 9a |
| San Perlita | Jan 21 | Dec 26 | 339 d | 10a |
| San Saba | Mar 16 | Nov 13 | 242 d | 8b |
| San Ygnacio | Jan 19 | Dec 22 | 337 d | 9b |
| Sanderson | Mar 11 | Nov 11 | 245 d | 8b |
| Sandia | Jan 31 | Dec 23 | 326 d | 9b |
| Sanford | Apr 20 | Oct 25 | 188 d | 7a |
| Sanger | Mar 24 | Nov 16 | 237 d | 8a |
| Santa Anna | Mar 14 | Nov 20 | 251 d | 8b |
| Santa Elena | Jan 23 | Dec 28 | 339 d | 9b |
| Santa Fe | Jan 31 | Dec 14 | 317 d | 9b |
| Santa Maria | Jan 8 | Dec 31 | 357 d | 10a |
| Santa Rosa | Jan 10 | Dec 27 | 351 d | 10a |
| Santo | Mar 23 | Nov 10 | 232 d | 8a |
| Saragosa | Mar 29 | Nov 9 | 225 d | 8a |
| Saratoga | Mar 6 | Nov 21 | 260 d | 9a |
| Sarita | Feb 17 | Dec 8 | 294 d | 9b |
| Satin | Mar 21 | Nov 9 | 233 d | 8b |
| Savoy | Mar 16 | Nov 13 | 242 d | 8a |
| Schertz | Feb 21 | Dec 5 | 287 d | 9a |
| Schulenburg | Mar 2 | Nov 27 | 270 d | 9a |
| Schwertner | Mar 5 | Nov 22 | 262 d | 8b |
| Scotland | Mar 25 | Nov 10 | 230 d | 8a |
| Scottsville | Mar 20 | Nov 11 | 236 d | 8b |
| Scroggins | Mar 15 | Nov 16 | 246 d | 8b |
| Scurry | Mar 16 | Nov 14 | 243 d | 8b |
| Seabrook | Jan 31 | Dec 14 | 317 d | 9b |
| Seadrift | Jan 30 | Dec 27 | 331 d | 9b |
| Seagoville | Mar 12 | Nov 19 | 252 d | 8b |
| Seagraves | Apr 7 | Nov 4 | 211 d | 8a |
| Sealy | Feb 28 | Nov 30 | 275 d | 9a |
| Sebastian | Jan 10 | Dec 27 | 351 d | 10a |
| Seguin | Mar 1 | Nov 26 | 270 d | 9a |
| Selman City | Mar 15 | Nov 16 | 246 d | 8b |
| Seminole | Apr 2 | Nov 6 | 218 d | 8a |
| Seymour | Mar 30 | Nov 6 | 221 d | 8a |
| Shallowater | Apr 4 | Nov 2 | 212 d | 7b |
| Shamrock | Apr 9 | Oct 30 | 204 d | 7b |
| Sheffield | Mar 31 | Nov 3 | 217 d | 8b |
| Shelbyville | Mar 13 | Nov 15 | 247 d | 8b |
| Shepherd | Mar 7 | Nov 20 | 258 d | 9a |
| Sheppard Afb | Mar 26 | Nov 9 | 228 d | 8a |
| Sheridan | Mar 9 | Nov 20 | 256 d | 9a |
| Sherman | Mar 14 | Nov 19 | 250 d | 8a |
| Shiner | Mar 2 | Nov 30 | 273 d | 9a |
| Shiro | Mar 2 | Nov 26 | 269 d | 9a |
| Sidney | Mar 26 | Nov 10 | 229 d | 8a |
| Sierra Blanca | Mar 29 | Nov 6 | 222 d | 8a |
| Silsbee | Feb 25 | Nov 30 | 278 d | 9a |
| Silver | Mar 26 | Nov 7 | 226 d | |
| Silverton | Apr 13 | Oct 28 | 198 d | 7b |
| Simms | Mar 26 | Nov 6 | 225 d | 8b |
| Simonton | Feb 28 | Nov 30 | 275 d | 9a |
| Sinton | Feb 1 | Dec 17 | 319 d | 9b |
| Skellytown | Apr 14 | Oct 28 | 197 d | 7a |
| Skidmore | Jan 31 | Dec 23 | 326 d | 9b |
| Slaton | Mar 24 | Nov 11 | 232 d | 8a |
| Slidell | Mar 24 | Nov 7 | 228 d | 8a |
| Smiley | Mar 7 | Nov 22 | 260 d | 9a |
| Smithville | Mar 12 | Nov 19 | 252 d | 9a |
| Smyer | Apr 9 | Nov 1 | 206 d | 7b |
| Snook | Mar 18 | Nov 9 | 236 d | 9a |
| Snyder | Mar 27 | Nov 10 | 228 d | 8a |
| Somerset | Feb 24 | Dec 2 | 281 d | 9a |
| Somerville | Mar 18 | Nov 9 | 236 d | 9a |
| Sonora | Apr 1 | Nov 6 | 219 d | 8a |
| Sour Lake | Feb 18 | Dec 2 | 287 d | 9a |
| South Bend | Apr 1 | Nov 5 | 218 d | 8a |
| South Houston | Jan 30 | Dec 28 | 332 d | 9b |
| South Padre Island | Jan 8 | Jan 4 | 361 d | 10b |
| South Plains | Apr 7 | Nov 3 | 210 d | 7b |
| Southlake | Mar 14 | Nov 17 | 248 d | 8b |
| Southmayd | Mar 14 | Nov 19 | 250 d | 8a |
| Spade | Apr 14 | Oct 26 | 195 d | 7b |
| Spearman | Apr 8 | Nov 4 | 210 d | 7a |
| Spicewood | Mar 17 | Nov 13 | 241 d | 8b |
| Splendora | Mar 7 | Nov 20 | 258 d | 9a |
| Spring | Feb 19 | Dec 3 | 287 d | 9b |
| Spring Branch | Mar 1 | Dec 1 | 275 d | 8b |
| Springlake | Apr 6 | Nov 1 | 209 d | 7a |
| Springtown | Mar 13 | Nov 20 | 252 d | 8a |
| Spur | Apr 6 | Nov 4 | 212 d | 8a |
| Spurger | Mar 9 | Nov 22 | 258 d | 9a |
| Stafford | Feb 2 | Dec 11 | 312 d | 9b |
| Stamford | Mar 23 | Nov 11 | 233 d | 8a |
| Stanton | Mar 26 | Nov 9 | 228 d | 8a |
| Staples | Feb 28 | Nov 29 | 274 d | 9a |
| Star | Mar 15 | Nov 18 | 248 d | 8b |
| Stephenville | Mar 29 | Nov 8 | 224 d | 8b |
| Sterling City | Mar 31 | Nov 6 | 220 d | 8a |
| Stinnett | Apr 6 | Nov 2 | 210 d | 7a |
| Stockdale | Mar 7 | Nov 22 | 260 d | 9a |
| Stonewall | Mar 22 | Nov 9 | 232 d | 8b |
| Stowell | Feb 12 | Dec 6 | 297 d | 9b |
| Stratford | Apr 21 | Oct 21 | 183 d | 7a |
| Strawn | Mar 23 | Nov 10 | 232 d | 8a |
| Streetman | Mar 7 | Nov 23 | 261 d | 8b |
| Sublime | Feb 17 | Dec 4 | 290 d | 9a |
| Sudan | Apr 22 | Oct 20 | 181 d | 7a |
| Sugar Land | Feb 9 | Dec 13 | 307 d | 9b |
| Sullivan City | Jan 23 | Dec 28 | 339 d | 10a |
| Sulphur Bluff | Mar 15 | Nov 16 | 246 d | 8b |
| Sulphur Springs | Mar 15 | Nov 14 | 244 d | 8b |
| Summerfield | Apr 17 | Oct 25 | 191 d | 7a |
| Sumner | Mar 14 | Nov 16 | 247 d | 8a |
| Sundown | Apr 9 | Nov 1 | 206 d | 7b |
| Sunnyvale | Mar 10 | Nov 19 | 254 d | 8b |
| Sunray | Apr 21 | Oct 24 | 186 d | 7a |
| Sunset | Apr 1 | Nov 4 | 217 d | 8a |
| Sutherland Springs | Mar 6 | Nov 20 | 259 d | 9a |
| Sweeny | Feb 13 | Dec 8 | 298 d | 9b |
| Sweet Home | Mar 2 | Nov 30 | 273 d | 9a |
| Sweetwater | Mar 30 | Nov 8 | 223 d | 8a |
| Sylvester | Mar 17 | Nov 15 | 243 d | 8a |