Langhorne Manor, PA 19053 Frost Dates
Langhorne Manor, PA: when does the frost end?
Around 04/04 is the usual last spring frost, about 219 days away. Fall's first freeze usually shows up around 11/07, roughly 216 days after the last spring frost.
Langhorne Manor 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 10 weeks until Langhorne Manor's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/04 isn't a guarantee
04/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/17 and only about 1 year in 10 sees frost after that.
Langhorne Manor against the rest of the dataset
At roughly 216 frost-free days, Langhorne Manor places 13,835 of 40,283 ZIP codes in this dataset. Within PA, it ranks 73 of 2,088.
Learn more
Before leaning on 19053's figures: local microclimates explains what one yard in Langhorne Manor can differ from the 19053 normal, while zone vs. frost date explains why Zone 7a and Langhorne Manor's frost date answer different questions.