York Haven, PA 17502 Frost Dates
Frost dates for York Haven, PA, ZIP 17502
Typically, the last spring freeze lands around 04/09, roughly 224 days out. The first fall frost typically arrives around 11/02, about 206 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 York Haven, not a forecast for this year.
What to do before the first frost
Zone 7a around York Haven has about 9 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around York Haven's last frost
04/09 is the middle of 30 years of NOAA records, not a promise. Plant by 03/28 and you're betting against frost in roughly 9 years out of 10. 04/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How York Haven compares
At roughly 206 frost-free days, York Haven places 16,084 of 40,283 ZIP codes in this dataset. Within PA, it ranks 111 of 2,088.
Learn more
zone vs. frost date explains why Zone 7a and York Haven's frost date answer different questions, and the frost range explains how to read the range around York Haven's dates instead of trusting one.