Last frost date in Winona, Minnesota
April 21
Average last frost in spring. In an early year (1 in 10) it's over by April 7; in a late year (1 in 10) it comes after May 4.
October 19
Average first frost in fall. 1 year in 10 it comes by October 4.
Source: NOAA U.S. Climate Normals 1991–2020, station Winona (USC00219067), 1.7 miles from Winona, elevation 652 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 7 | Apr 21 | May 4 |
| First frost in fall | Oct 4 | Oct 19 | Nov 1 |
Frost-free days in an average year: 180
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 2 | Oct 8 |
| Frost (32°F) | Every year | Apr 21 | Oct 19 |
| Hard freeze (28°F) | Every year | Apr 9 | Oct 29 |
Nights at 32°F or colder in an average year: 139
What to plant now in Winona
- Spring planting calendar for an average last frost around April 20 Winona: April 21
- Fall planting calendar for an average first frost around October 20 Winona: October 19
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 Minnesota
- Rochester 40 mi · last frost Apr 30
- Red Wing 59 mi · last frost Apr 23
- Austin 70 mi · last frost Apr 30
- Owatonna 78 mi · last frost May 5
- Cottage Grove 81 mi · last frost Apr 23
Updated