Frost dates in Sanborn County, South Dakota
The average last spring frost in Sanborn County falls Apr 27 to May 9 and the average first fall frost Sep 28 to Oct 11, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b to 5a. Places: Artesian, Letcher, Woonsocket. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 57314 | Artesian | May 9 | Sep 28 | 4b |
| 57359 | Letcher | Apr 27 | Oct 11 | 5a |
| 57385 | Woonsocket | May 9 | Sep 28 | 5a |
Nearby counties
Jerauld County Miner County Davison County Beadle County Hanson County Aurora County
All South Dakota counties · Download South Dakota frost dates (CSV)
Never miss a frost: get The Dial
Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
- Freeze alerts
- Soil-temp heads-up
- Weekly yard to-dos
Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.