Doylestown, PA 18928 Frost Dates
Doylestown, PA: when does the frost end?
Typically, the last spring freeze lands around 04/13, roughly 228 days out. Fall's first freeze usually shows up around 10/30, roughly 198 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 9 weeks until Doylestown's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/13 isn't a guarantee
04/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/27 and only about 1 year in 10 sees frost after that.
Doylestown against the rest of the dataset
About 198 days separate Doylestown's last and first frost, putting it 18,407 of 40,283 ZIP codes nationally. Within PA, it ranks 335 of 2,088.
Learn more
Before leaning on 18928's figures: the frost range explains how to read the range around Doylestown's dates instead of trusting one, while local microclimates explains what one yard in Doylestown can differ from the 18928 normal.