Last frost date in Plymouth, Minnesota
April 29
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 12.
October 12
Average first frost in fall. 1 year in 10 it comes by September 29.
Source: NOAA U.S. Climate Normals 1991–2020, station New Hope (USC00215838), 4.2 miles from Plymouth, elevation 910 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Golden Valley, Hopkins, Minnetonka, New Hope, Robbinsdale and St. Louis Park, so their frost dates are the same as Plymouth's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 15 | Apr 29 | May 12 |
| First frost in fall | Sept 29 | Oct 12 | Oct 25 |
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 8 | Oct 1 |
| Frost (32°F) | Every year | Apr 29 | Oct 12 |
| Hard freeze (28°F) | Every year | Apr 19 | Oct 22 |
Nights at 32°F or colder in an average year: 156
What to plant now in Plymouth
- Spring planting calendar for an average last frost around April 30 Plymouth: April 29
- Fall planting calendar for an average first frost around October 10 Plymouth: October 12
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
- Brooklyn Park 8 mi · last frost Apr 30
- Minneapolis 10 mi · last frost Apr 23
- Eden Prairie 12 mi · last frost Apr 23
- Chanhassen 13 mi · last frost Apr 30
- Roseville 15 mi · last frost Apr 28
Updated