Sellersville, PA 18960 Frost Dates
Sellersville, PA: when does the frost end?
Around 04/26 is the usual last spring frost, about 241 days away. Fall's first freeze usually shows up around 10/17, roughly 175 days after the last spring frost.
Zone 7a (0 to 5°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 Sellersville, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Sellersville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/26 isn't a guarantee
04/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/12 and only about 1 year in 10 sees frost after that.
Sellersville against the rest of the dataset
At roughly 175 frost-free days, Sellersville places 26,890 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,137 of 2,088.
Learn more
Before leaning on 18960's figures: local microclimates explains what one yard in Sellersville can differ from the 18960 normal, while zone vs. frost date explains why Zone 7a and Sellersville's frost date answer different questions.