Last frost date in McKeesport, Pennsylvania
May 2
Average last frost in spring. In an early year (1 in 10) it's over by April 17; in a late year (1 in 10) it comes after May 20.
October 20
Average first frost in fall. 1 year in 10 it comes by October 1.
Source: NOAA U.S. Climate Normals 1991–2020, station Mckeesport (USC00365573), 0.8 miles from McKeesport, elevation 740 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 17 | May 2 | May 20 |
| First frost in fall | Oct 1 | Oct 20 | Nov 3 |
Frost-free days in an average year: 170
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 12 | Oct 7 |
| Frost (32°F) | Every year | May 2 | Oct 20 |
| Hard freeze (28°F) | Every year | Apr 20 | Nov 1 |
Nights at 32°F or colder in an average year: 124
What to plant now in McKeesport
- Spring planting calendar for an average last frost around April 30 McKeesport: May 2
- Fall planting calendar for an average first frost around October 20 McKeesport: October 20
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
- Wilkinsburg 7 mi · last frost Apr 5
- Monroeville 7 mi · last frost Apr 22
- Pittsburgh 10 mi · last frost Apr 18
- Plum 12 mi · last frost Apr 16
- Greensburg 16 mi · last frost May 1