Last frost date in Vermillion, South Dakota
May 3
Average last frost in spring. In an early year (1 in 10) it's over by April 20; in a late year (1 in 10) it comes after May 16.
October 3
Average first frost in fall. 1 year in 10 it comes by September 20.
Source: NOAA U.S. Climate Normals 1991–2020, station Vermillion 2 SE (USC00398622), 1.4 miles from Vermillion, elevation 1,137 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 20 | May 3 | May 16 |
| First frost in fall | Sept 20 | Oct 3 | Oct 17 |
Frost-free days in an average year: 153
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 11 | Sept 25 |
| Frost (32°F) | Every year | May 3 | Oct 3 |
| Hard freeze (28°F) | Every year | Apr 24 | Oct 15 |
Nights at 32°F or colder in an average year: 152
What to plant now in Vermillion
- Spring planting calendar for an average last frost around April 30 Vermillion: May 3
- Fall planting calendar for an average first frost around September 30 Vermillion: October 3
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in South Dakota
- Yankton 25 mi · last frost Apr 27
- Harrisburg 46 mi · last frost May 2
- Sioux Falls 53 mi · last frost Apr 26
- Brandon 59 mi · last frost May 1
- Mitchell 86 mi · last frost May 2
Updated