North York, PA 17402 Frost Dates
When can you plant in North York, PA?
Typically, the last spring freeze lands around 04/26, roughly 241 days out. The first fall frost typically arrives around 10/19, about 177 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 North York, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in North York before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around North York's last frost
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 and you're betting against frost in roughly 9 years out of 10. 05/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How North York compares
North York's growing season runs about 177 days, ranking 26,138 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 957 of 2,088.
Learn more
the frost range covers how to read the range around North York's dates instead of trusting one. local microclimates covers what one yard in North York can differ from the 17402 normal.