South Dakota Frost Dates
South Dakota gardening depends on making the most of a relatively short warm window across much of the state. Frost often leaves earlier in the southeast than in the Black Hills and northern plains, and exposed sites can feel colder than nearby sheltered ground.
Look up your exact frost dates
Frost timing shifts across South Dakota with elevation and distance from water. Enter your ZIP code for dates from your nearest weather station.
South Dakota locations
| ZIP | Area | Hardiness zone |
|---|---|---|
| 57006 | Brookings | 4b |
| 57007 | Brookings | 4b |
| 57028 | Flandreau | 4b |
| 57066 | Tyndall | 5a |
| 57076 | Winfred | 4b |
| 57104 | Sioux Falls | 5a |
| 57225 | Clark | 4b |
| 57247 | Lake City | 4a |
| 57279 | Wilmot | 4b |
| 57313 | Armour | 5a |
| 57346 | Stephan | 4b |
| 57350 | Huron | 4b |
| 57367 | Pickstown | 5b |
| 57422 | Andover | 4b |
| 57544 | Kennebec | 5a |
| 57555 | Mission | 5a |
| 57656 | Timber Lake | 4b |
| 57741 | Sturgis | - |
| 57751 | Keystone | 5a |
| 57799 | Spearfish | - |
| 57001 | Alcester | 5a |
| 57002 | Aurora | 4b |
| 57003 | Baltic | 5a |
| 57004 | Beresford | 5a |
| 57005 | Brandon | 5a |
| 57010 | Burbank | 5a |
| 57012 | Canistota | 5a |
| 57013 | Canton | 5a |
| 57014 | Centerville | 5a |
| 57015 | Chancellor | 5a |
| 57016 | Chester | 4b |
| 57017 | Colman | 4b |
| 57018 | Colton | 4b |
| 57020 | Crooks | 5a |
| 57021 | Davis | 5a |
| 57022 | Dell Rapids | 4b |
| 57024 | Egan | 4b |
| 57025 | Elk Point | 5a |
| 57027 | Fairview | 5a |
| 57029 | Freeman | 5a |
| 57031 | Gayville | 5a |
| 57032 | Harrisburg | 5a |
| 57033 | Hartford | 5a |
| 57035 | Humboldt | 4b |
| 57036 | Hurley | 5a |
| 57037 | Irene | 5a |
| 57038 | Jefferson | 5a |
| 57039 | Lennox | 5a |
| 57040 | Lesterville | 5a |
| 57041 | Lyons | 5a |
| 57042 | Madison | 4b |
| 57043 | Marion | 5a |
| 57045 | Menno | 5a |
| 57046 | Mission Hill | 5a |
| 57047 | Monroe | 5a |
| 57048 | Montrose | 5a |
| 57049 | North Sioux City | 5a |
| 57050 | Nunda | 4b |
| 57051 | Oldham | 4b |
| 57052 | Olivet | 5a |
Source: NOAA 1991–2020 U.S. Climate Normals (public domain) and USDA 2023 Plant Hardiness Zone Map. Page updated Aug 4, 2026.