Walnutport, PA 18078 Frost Dates
18078, near Walnutport, PA: the frost window
Around 04/20 is the usual last spring frost, about 235 days away. Fall's first freeze usually shows up around 10/24, roughly 184 days after the last spring frost.
Walnutport sits in USDA Zone 6b (-5 to 0°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
Walnutport's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Walnutport's last frost
04/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Walnutport against the rest of the dataset
About 184 days separate Walnutport's last and first frost, putting it 23,568 of 40,283 ZIP codes nationally. Within PA, it ranks 807 of 2,088.
Learn more
Two guides worth reading on 18078: local microclimates, on what one yard in Walnutport can differ from the 18078 normal, and zone vs. frost date, on why Zone 6b and Walnutport's frost date answer different questions.