West Chester, PA 19382 Frost Dates
When can you plant in West Chester, PA?
The last spring frost here typically falls around 04/26, about 241 days from today. The first fall frost typically arrives around 10/18, about 174 frost-free days later.
Zone 7a (0 to 5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for West Chester, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in West Chester before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around West Chester's last frost
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How West Chester compares
At roughly 174 frost-free days, West Chester places 27,361 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,281 of 2,088.
Learn more
zone vs. frost date covers why Zone 7a and West Chester's frost date answer different questions. the frost range covers how to read the range around West Chester's dates instead of trusting one.