Last frost date in West Chester, Pennsylvania
April 26
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 18
Average first frost in fall. 1 year in 10 it comes by October 4.
Source: NOAA U.S. Climate Normals 1991–2020, station W Chester 2 NW (USC00369464), 1.7 miles from West Chester, elevation 375 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 26 | May 11 |
| First frost in fall | Oct 4 | Oct 18 | Nov 1 |
Frost-free days in an average year: 174
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 7 | Oct 7 |
| Frost (32°F) | Every year | Apr 26 | Oct 18 |
| Hard freeze (28°F) | Every year | Apr 11 | Oct 30 |
Nights at 32°F or colder in an average year: 131
What to plant now in West Chester
- Spring planting calendar for an average last frost around April 30 West Chester: April 26
- Fall planting calendar for an average first frost around October 20 West Chester: October 18
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
- Coatesville 11 mi · last frost Apr 19
- Phoenixville 13 mi · last frost Apr 18
- Chester 15 mi · last frost Mar 30
- Norristown 18 mi · last frost Apr 8
- Yeadon 19 mi · last frost Apr 2
Updated