Last frost date in Plymouth, Indiana
April 25
Average last frost in spring. In an early year (1 in 10) it's over by April 12; in a late year (1 in 10) it comes after May 13.
October 21
Average first frost in fall. 1 year in 10 it comes by October 5.
Source: NOAA U.S. Climate Normals 1991–2020, station Plymouth (USC00126989), 1.1 miles from Plymouth, elevation 815 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 12 | Apr 25 | May 13 |
| First frost in fall | Oct 5 | Oct 21 | Nov 3 |
Frost-free days in an average year: 178
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 6 | Oct 9 |
| Frost (32°F) | Every year | Apr 25 | Oct 21 |
| Hard freeze (28°F) | Every year | Apr 14 | Nov 1 |
Nights at 32°F or colder in an average year: 132
What to plant now in Plymouth
- Spring planting calendar for an average last frost around April 20 Plymouth: April 25
- Fall planting calendar for an average first frost around October 20 Plymouth: October 21
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 Indiana
- South Bend 23 mi · last frost Apr 23
- Warsaw 25 mi · last frost Apr 28
- Elkhart 30 mi · last frost Apr 26
- Michigan City 38 mi · last frost Apr 19
- Logansport 42 mi · last frost Apr 20