Last frost date in Indiana, Pennsylvania
May 8
Average last frost in spring. In an early year (1 in 10) it's over by April 23; in a late year (1 in 10) it comes after May 24.
October 13
Average first frost in fall. 1 year in 10 it comes by October 1.
Source: NOAA U.S. Climate Normals 1991–2020, station Indiana 3 SE (USC00364214), 2.6 miles from Indiana, elevation 1,102 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 23 | May 8 | May 24 |
| First frost in fall | Oct 1 | Oct 13 | Oct 27 |
Frost-free days in an average year: 157
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 20 | Oct 3 |
| Frost (32°F) | Every year | May 8 | Oct 13 |
| Hard freeze (28°F) | Every year | Apr 27 | Oct 25 |
Nights at 32°F or colder in an average year: 131
What to plant now in Indiana
- Spring planting calendar for an average last frost around May 10 Indiana: May 8
- Fall planting calendar for an average first frost around October 10 Indiana: October 13
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 Pennsylvania
- Johnstown 24 mi · last frost Apr 29
- Greensburg 30 mi · last frost May 1
- New Kensington 32 mi · last frost Apr 16
- Plum 32 mi · last frost Apr 16
- Monroeville 35 mi · last frost Apr 22
Updated