North Wales, PA 19404 Frost Dates
19404, near North Wales, PA: the frost window
The last spring frost here typically falls around 04/24, about 239 days from today. Fall's first freeze usually shows up around 10/15, roughly 173 days after the last spring frost.
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.
Stretching the season past the first frost
North Wales's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/24 isn't a guarantee
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/09 and only about 1 year in 10 sees frost after that.
North Wales against the rest of the dataset
About 173 days separate North Wales's last and first frost, putting it 27,893 of 40,283 ZIP codes nationally. Within PA, it ranks 1,320 of 2,088.
Learn more
Two guides worth reading on 19404: the frost range, on how to read the range around North Wales's dates instead of trusting one, and local microclimates, on what one yard in North Wales can differ from the 19404 normal.