New Jersey frost dates: S
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Saddle Brook | Apr 3 | Nov 4 | 215 d | 7b |
| Saddle River | Apr 19 | Oct 23 | 187 d | 7a |
| Salem | Apr 7 | Nov 1 | 208 d | 7b |
| Sayreville | Apr 15 | Oct 26 | 194 d | 7a |
| Schooleys Mountain | Apr 30 | Oct 18 | 171 d | 6b |
| Scotch Plains | Apr 11 | Oct 28 | 200 d | 7a |
| Sea Girt | Apr 9 | Nov 3 | 208 d | 7b |
| Sea Isle City | Apr 24 | Oct 22 | 181 d | 7b |
| Seaside Heights | Apr 23 | Oct 20 | 180 d | 7b |
| Seaside Park | Apr 23 | Oct 20 | 180 d | 7b |
| Secaucus | Apr 4 | Nov 6 | 216 d | 7b |
| Sergeantsville | Apr 16 | Oct 19 | 186 d | 7a |
| Sewaren | Apr 11 | Oct 28 | 200 d | 7b |
| Sewell | Apr 8 | Nov 1 | 207 d | 7b |
| Shiloh | Apr 10 | Nov 1 | 205 d | 7b |
| Short Hills | Apr 18 | Oct 27 | 192 d | 7a |
| Shrewsbury | Apr 9 | Nov 3 | 208 d | 7b |
| Sicklerville | Apr 8 | Nov 1 | 207 d | 7a |
| Skillman | Apr 16 | Oct 27 | 194 d | 7a |
| Somerdale | Apr 8 | Nov 1 | 207 d | 7b |
| Somers Point | Mar 26 | Nov 22 | 241 d | 7b |
| Somerset | Apr 15 | Oct 26 | 194 d | 7a |
| Somerville | Apr 30 | Oct 20 | 173 d | 7a |
| South Amboy | Apr 15 | Oct 26 | 194 d | 7b |
| South Bound Brook | Apr 11 | Oct 28 | 200 d | 7a |
| South Dennis | Apr 24 | Oct 22 | 181 d | 7b |
| South Hackensack | Apr 3 | Nov 4 | 215 d | 7b |
| South Orange | Apr 18 | Oct 27 | 192 d | 7a |
| South Plainfield | Apr 11 | Oct 28 | 200 d | 7a |
| South River | Apr 15 | Oct 26 | 194 d | 7a |
| South Seaville | Apr 24 | Oct 22 | 181 d | 7b |
| Sparta | Apr 25 | Oct 19 | 177 d | 6b |
| Spotswood | Apr 15 | Oct 26 | 194 d | 7a |
| Spring Lake | Apr 9 | Nov 3 | 208 d | 7b |
| Springfield | Apr 11 | Oct 31 | 203 d | 7a |
| Stanhope | Apr 25 | Oct 19 | 177 d | 6b |
| Stanton | Apr 24 | Oct 21 | 180 d | 7a |
| Stewartsville | Apr 18 | Oct 25 | 190 d | 7a |
| Stillwater | Apr 24 | Oct 16 | 175 d | 6b |
| Stirling | Apr 11 | Oct 28 | 200 d | 7a |
| Stockholm | Apr 25 | Oct 17 | 175 d | 6b |
| Stockton | Apr 16 | Oct 19 | 186 d | 7a |
| Stone Harbor | Apr 1 | Nov 9 | 222 d | 7b |
| Stratford | Apr 8 | Nov 1 | 207 d | 7b |
| Strathmere | Apr 24 | Oct 22 | 181 d | 7b |
| Succasunna | Apr 25 | Oct 19 | 177 d | 6b |
| Summit | Apr 18 | Oct 27 | 192 d | 7a |
| Sussex | May 1 | Oct 12 | 164 d | 6b |
| Swartswood | Apr 24 | Oct 16 | 175 d | 6b |
| Swedesboro | Mar 30 | Nov 16 | 231 d | 7b |