Narberth, PA 19072 Frost Dates
When can you plant in Narberth, PA?
Typically, the last spring freeze lands around 04/08, roughly 223 days out. The first fall frost typically arrives around 10/31, about 203 frost-free days later.
Narberth sits in USDA Zone 7b (5 to 10°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 Narberth before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Narberth's last frost
04/08 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. 04/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Narberth compares
Narberth's growing season runs about 203 days, ranking 16,910 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 206 of 2,088.
Learn more
the frost range covers how to read the range around Narberth's dates instead of trusting one. local microclimates covers what one yard in Narberth can differ from the 19072 normal.