Last frost date in Johnstown, Pennsylvania
April 29
Average last frost in spring. In an early year (1 in 10) it's over by April 14; in a late year (1 in 10) it comes after May 17.
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 Johnstown Cambria Co AP (USW00004726), 4.5 miles from Johnstown, elevation 2,284 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 14 | Apr 29 | May 17 |
| 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 8 | Oct 8 |
| Frost (32°F) | Every year | Apr 29 | Oct 21 |
| Hard freeze (28°F) | Every year | Apr 17 | Nov 2 |
Nights at 32°F or colder in an average year: 127
What to plant now in Johnstown
- Spring planting calendar for an average last frost around April 30 Johnstown: April 29
- Fall planting calendar for an average first frost around October 20 Johnstown: 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
- Indiana 24 mi · last frost May 8
- Altoona 30 mi · last frost Apr 25
- Greensburg 33 mi · last frost May 1
- Monroeville 45 mi · last frost Apr 22
- Plum 45 mi · last frost Apr 16
Updated