Last frost date in Altoona, Pennsylvania
April 25
Average last frost in spring. In an early year (1 in 10) it's over by April 10; in a late year (1 in 10) it comes after May 11.
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 Altoona 3 W (USC00360140), 3.6 miles from Altoona, elevation 1,320 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 10 | Apr 25 | May 11 |
| First frost in fall | Oct 5 | Oct 21 | Nov 5 |
Frost-free days in an average year: 176
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 4 | Oct 8 |
| Frost (32°F) | Every year | Apr 25 | Oct 21 |
| Hard freeze (28°F) | Every year | Apr 13 | Nov 3 |
Nights at 32°F or colder in an average year: 128
What to plant now in Altoona
- Spring planting calendar for an average last frost around April 20 Altoona: April 25
- Fall planting calendar for an average first frost around October 20 Altoona: 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 Pennsylvania
- Johnstown 30 mi · last frost Apr 29
- State College 35 mi · last frost Apr 20
- Indiana 40 mi · last frost May 8
- Chambersburg 56 mi · last frost Apr 18
- Greensburg 62 mi · last frost May 1
Updated