Kingston, PA 18710 Frost Dates
18710, near Kingston, PA: the frost window
Typically, the last spring freeze lands around 04/23, roughly 238 days out. Fall's first freeze usually shows up around 10/20, roughly 178 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Kingston in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's 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.
How much risk comes with planting early here
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 25,633 of 40,283 ZIP codes in this dataset. Within PA, it ranks 884 of 2,088.
Learn more
Two guides worth reading on 18710: local microclimates, on what one yard in Kingston can differ from the 18710 normal, and zone vs. frost date, on why Zone 7a and Kingston's frost date answer different questions.