Last frost date in Plum, Pennsylvania
April 16
Average last frost in spring. In an early year (1 in 10) it's over by March 31; in a late year (1 in 10) it comes after May 4.
November 1
Average first frost in fall. 1 year in 10 it comes by October 18.
Source: NOAA U.S. Climate Normals 1991–2020, station Acmetonia Lock 3 (USC00360022), 4.2 miles from Plum, elevation 748 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Mar 31 | Apr 16 | May 4 |
| First frost in fall | Oct 18 | Nov 1 | Nov 13 |
Frost-free days in an average year: 197
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 29 | Oct 20 |
| Frost (32°F) | Every year | Apr 16 | Nov 1 |
| Hard freeze (28°F) | Every year | Apr 3 | Nov 11 |
Nights at 32°F or colder in an average year: 117
What to plant now in Plum
- Corn saladSept 15 – Nov 1Now
- Upland cressSept 15 – Nov 1Now
- Rhubarb plantsNov 1 – Dec 1Soon
- Asparagus plantsNov 15 – Jan 1Soon
- Spring planting calendar for an average last frost around April 20 Plum: April 16
- Fall planting calendar for an average first frost around October 30 Plum: November 1
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
- New Kensington 5 mi · last frost Apr 16
- Monroeville 5 mi · last frost Apr 22
- Wilkinsburg 8 mi · last frost Apr 5
- McKeesport 12 mi · last frost May 2
- Pittsburgh 13 mi · last frost Apr 18
Updated