North Wales, PA 18936 Frost Dates
When can you plant in North Wales, PA?
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.
North Wales sits in USDA Zone 7a (0 to 5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 9 weeks of growing season left in North Wales before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
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
North Wales's growing season runs about 205 days, ranking 16,287 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 150 of 2,088.
Learn more
the frost range covers how to read the range around North Wales's dates instead of trusting one. local microclimates covers what one yard in North Wales can differ from the 18936 normal.