North Wales, PA 19454 Frost Dates
Frost dates for North Wales, PA, ZIP 19454
Typically, the last spring freeze lands around 04/11, roughly 226 days out. The first fall frost typically arrives around 11/01, about 205 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 Wales, not a forecast for this year.
What to do before the first frost
Zone 7a around North Wales 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 North Wales's last frost
04/11 is the middle of 30 years of NOAA records, not a promise. Plant by 03/29 and you're betting against frost in roughly 9 years out of 10. 04/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How North Wales compares
At roughly 205 frost-free days, North Wales places 16,290 of 40,283 ZIP codes in this dataset. Within PA, it ranks 153 of 2,088.
Learn more
the frost range explains how to read the range around North Wales's dates instead of trusting one, and local microclimates explains what one yard in North Wales can differ from the 19454 normal.