South Dakota · 72 stations
South Dakota Frost Dates: 72 Weather Stations
72 NOAA weather stations in South Dakota with at least 25 years of frost records.
| Station | Zone | Last spring frost (50%) | First fall frost (50%) | Frost-free days |
|---|---|---|---|---|
| Aberdeen, SD | 4a | May 9 | September 26 | 139 |
| Academy, SD | 5a | April 30 | October 8 | 159 |
| Alexandria, SD | 5a | May 8 | September 29 | 143 |
| Belle Fourche, SD | 5a | May 10 | September 30 | 143 |
| Bison, SD | 5a | May 10 | October 1 | 144 |
| Bridgewater, SD | 5a | April 30 | October 7 | 161 |
| Britton, SD | 4a | May 13 | September 26 | 135 |
| Brookings, SD | 4b | May 6 | October 1 | 145 |
| Camp Crook, SD | 4b | May 17 | September 24 | 128 |
| Centerville, SD | 5a | May 2 | October 1 | 151 |
| Chamberlain, SD | 5a | May 3 | October 7 | 156 |
| Clear Lake, SD | 4b | May 7 | October 1 | 146 |
| Columbia, SD | 4a | May 7 | September 29 | 145 |
| Cottonwood, SD | 4b | May 16 | September 26 | 132 |
| Custer, SD | 5a | May 18 | September 28 | 129 |
| De Smet, SD | 4b | May 5 | October 4 | 151 |
| Dupree, SD | 4b | May 8 | October 1 | 144 |
| Dupree 15 SSE, SD | 5a | May 6 | October 2 | 148 |
| Elm Springs, SD | 5a | May 8 | October 3 | 146 |
| Faulkton, SD | 4b | May 10 | September 28 | 139 |
| Flandreau, SD | 4b | May 5 | October 1 | 148 |
| Glad Valley, SD | 4b | May 11 | September 30 | 140 |
| Gregory, SD | 5a | May 6 | October 3 | 149 |
| Highmore, SD | 4b | May 12 | October 1 | 142 |
| Hill City, SD | 4b | June 1 | September 10 | 102 |
| Hot Springs, SD | 5a | May 16 | September 27 | 133 |
| Huron, SD | 4b | May 6 | October 2 | 146 |
| Interior, SD | 5a | May 5 | October 7 | 152 |
| Ipswich, SD | 4b | May 8 | September 29 | 143 |
| Kennebec, SD | 4b | May 12 | September 28 | 137 |
| Lead, SD | 5a | May 18 | September 29 | 133 |
| Lemmon, SD | 4b | May 10 | September 30 | 142 |
| Madison, SD | 4b | May 5 | September 30 | 148 |
| Maurine, SD | 4b | May 13 | September 28 | 136 |
| McLaughlin, SD | 4b | May 12 | September 28 | 137 |
| Mellette, SD | 4a | May 11 | September 27 | 137 |
| Menno, SD | 5a | May 1 | October 4 | 156 |
| Milesville, SD | 4b | May 8 | October 2 | 147 |
| Miller, SD | 4b | May 3 | October 3 | 152 |
| Mission, SD | 5a | May 11 | October 2 | 145 |
| Mount Rushmore National Memorial, SD | 5b | May 15 | October 1 | 138 |
| Murdo, SD | 5a | May 3 | October 9 | 158 |
| Newell, SD | 4b | May 8 | October 1 | 144 |
| Oelrichs, SD | 5a | May 15 | September 30 | 137 |
| Onida, SD | 4b | May 8 | October 2 | 147 |
| Oral, SD | 4b | May 15 | September 27 | 133 |
| Philip, SD | 4b | May 11 | September 30 | 141 |
| Pickstown, SD | 5b | April 30 | October 13 | 165 |
| Pierre, SD | 5a | May 6 | October 3 | 148 |
| Pollock, SD | 4a | May 8 | September 30 | 143 |
| Rapid City (Airport), SD | 5a | May 12 | October 1 | 139 |
| Red Owl, SD | 4b | May 16 | September 26 | 131 |
| Roscoe, SD | 4b | May 7 | October 3 | 148 |
| Selby, SD | 4b | May 8 | October 1 | 145 |
| Sioux Falls, SD | 5a | May 1 | October 6 | 157 |
| Sisseton, SD | 4b | May 4 | October 3 | 151 |
| Spearfish, SD | 5b | May 12 | October 2 | 143 |
| Summit, SD | 4a | May 14 | September 28 | 136 |
| Timber Lake, SD | 4b | May 10 | September 30 | 141 |
| Tyndall, SD | 5a | May 1 | October 7 | 158 |
| Vermillion, SD | 5a | May 3 | October 3 | 153 |
| Victor, SD | 4b | May 4 | October 3 | 152 |
| Watertown, SD | 4b | May 7 | September 30 | 145 |
| Waubay National Wild Life, SD | 4b | May 1 | October 12 | 164 |
| Webster, SD | 4b | May 4 | October 6 | 156 |
| Wessington Springs, SD | 5a | May 2 | October 8 | 157 |
| White Lake, SD | 5a | May 3 | October 5 | 153 |
| Wind Cave, SD | 5b | May 15 | September 29 | 133 |
| Yankton, SD | 5a | April 27 | October 11 | 164 |
| near Blackhawk, SD | 5b | May 10 | October 5 | 147 |
| near Colonial Pine Hills, SD | 5a | May 28 | September 18 | 112 |
| near Sturgis, SD | 5a | May 8 | October 3 | 147 |