Doylestown, PA 18916 Frost Dates
Frost dates for Doylestown, PA, ZIP 18916
Typically, the last spring freeze lands around 04/13, roughly 228 days out. The first fall frost typically arrives around 10/30, about 198 frost-free days later.
Doylestown 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
Zone 7a around Doylestown has about 9 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.
The actual range around Doylestown's last frost
04/13 is the middle of 30 years of NOAA records, not a promise. Plant by 04/01 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 Doylestown compares
Doylestown's growing season runs about 198 days, ranking 18,403 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 331 of 2,088.
Learn more
local microclimates explains what one yard in Doylestown can differ from the 18916 normal, and zone vs. frost date explains why Zone 7a and Doylestown's frost date answer different questions.