Tullytown, PA 08518 Frost Dates
08518, near Tullytown, PA: the frost window
Around 04/15 is the usual last spring frost, about 230 days away. Fall's first freeze usually shows up around 10/29, roughly 196 days after the last spring frost.
Tullytown sits in USDA Zone 7b (5 to 10°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
Tullytown's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/15 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 04/29 and only about 1 year in 10 sees frost after that.
Tullytown against the rest of the dataset
About 196 days separate Tullytown's last and first frost, putting it 18,995 of 40,283 ZIP codes nationally. Within PA, it ranks 377 of 2,088.
Learn more
Two guides worth reading on 08518: local microclimates, on what one yard in Tullytown can differ from the 08518 normal, and zone vs. frost date, on why Zone 7b and Tullytown's frost date answer different questions.