| City | Population | Last spring frost | First fall frost | Growing season | Zone |
|---|---|---|---|---|---|
| Sioux Falls | 213,748 | Apr 26 | Oct 13 | 169 days | 5a |
| Rapid City | 80,589 | May 3 | Oct 8 | 157 days | 5b |
| Aberdeen | 27,961 | May 8 | Sep 29 | 144 days | 4a |
| Brookings | 25,355 | May 6 | Oct 1 | 145 days | 4b |
| Watertown | 23,736 | May 7 | Sep 30 | 145 days | 4b |
| Yankton | 15,816 | Apr 27 | Oct 11 | 164 days | 5a |
| Mitchell | 15,756 | May 2 | Oct 6 | 156 days | 5a |
| Huron | 14,607 | May 6 | Oct 2 | 146 days | 4b |
| Spearfish | 14,154 | May 12 | Oct 2 | 143 days | 5b |
| Box Elder | 13,936 | May 12 | Oct 1 | 139 days | 5b |
| Pierre | 13,848 | May 6 | Oct 3 | 148 days | 4b |
| Vermillion | 11,720 | May 3 | Oct 3 | 153 days | 5a |
| Brandon | 11,306 | May 1 | Oct 6 | 157 days | 5a |
| Harrisburg | 10,405 | May 2 | Oct 2 | 151 days | 5a |
| Tea | 8,019 | Apr 26 | Oct 13 | 169 days | 5a |
| Sturgis | 6,922 | May 8 | Oct 3 | 147 days | 5a |
| Madison | 6,065 | May 5 | Sep 30 | 148 days | 4b |
| Belle Fourche | 5,791 | May 10 | Sep 30 | 143 days | 5b |