Kingston, PA 18769 Frost Dates
18769, near Kingston, PA: the frost window
Around 04/23 is the usual last spring frost, about 238 days away. Fall's first freeze usually shows up around 10/20, roughly 178 days after the last spring frost.
Kingston 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
Kingston'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.
Why 04/23 isn't a guarantee
04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/10 and only about 1 year in 10 sees frost after that.
Kingston against the rest of the dataset
At roughly 178 frost-free days, Kingston places 25,639 of 40,283 ZIP codes in this dataset. Within PA, it ranks 890 of 2,088.
Learn more
Two guides worth reading on 18769: local microclimates, on what one yard in Kingston can differ from the 18769 normal, and zone vs. frost date, on why Zone 6b and Kingston's frost date answer different questions.