North Wales, PA 19407 Frost Dates
Frost dates for North Wales, PA, ZIP 19407
The last spring frost here typically falls around 04/24, about 239 days from today. The first fall frost typically arrives around 10/15, about 173 frost-free days later.
The USDA Plant Hardiness Zone Map puts North Wales in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 7a around North Wales has about 7 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.
How much risk comes with planting early here
04/24 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. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How North Wales compares
At roughly 173 frost-free days, North Wales places 27,894 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,321 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 19407 normal.