Last frost date in St. Michael, Minnesota
April 30
Average last frost in spring. In an early year (1 in 10) it's over by April 15; in a late year (1 in 10) it comes after May 13.
October 9
Average first frost in fall. 1 year in 10 it comes by September 25.
Source: NOAA U.S. Climate Normals 1991–2020, station Buffalo 2NE (USC00211107), 7.3 miles from St. Michael, elevation 992 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Buffalo and Monticello, so their frost dates are the same as St. Michael's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 15 | Apr 30 | May 13 |
| First frost in fall | Sept 25 | Oct 9 | Oct 23 |
Frost-free days in an average year: 163
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 9 | Oct 1 |
| Frost (32°F) | Every year | Apr 30 | Oct 9 |
| Hard freeze (28°F) | Every year | Apr 19 | Oct 21 |
Nights at 32°F or colder in an average year: 163
What to plant now in St. Michael
- Spring planting calendar for an average last frost around April 30 St. Michael: April 30
- Fall planting calendar for an average first frost around October 10 St. Michael: October 9
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
- Ramsey 12 mi · last frost May 4
- Plymouth 16 mi · last frost Apr 29
- Brooklyn Park 18 mi · last frost Apr 30
- Blaine 24 mi · last frost May 5
- Chanhassen 25 mi · last frost Apr 30
Updated