Narberth, PA 19128 Frost Dates
When can you plant in Narberth, PA?
The last spring frost here typically falls around 04/08, about 223 days from today. The first fall frost typically arrives around 10/31, about 203 frost-free days later.
Zone 7b (5 to 10°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 Narberth, not a forecast for this year.
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
About 203 days separate Narberth's last and first frost, putting it 16,913 of 40,283 ZIP codes nationally. Within PA, it ranks 209 of 2,088.
Learn more
local microclimates covers what one yard in Narberth can differ from the 19128 normal. zone vs. frost date covers why Zone 7b and Narberth's frost date answer different questions.