Freeport, PA 16055 Frost Dates
16055, near Freeport, PA: the frost window
Typically, the last spring freeze lands around 04/16, roughly 231 days out. Fall's first freeze usually shows up around 11/02, roughly 199 days after the last spring frost.
Zone 6b (-5 to 0°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Freeport, not a forecast for this year.
Stretching the season past the first frost
Freeport'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.
Why 04/16 isn't a guarantee
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/02 and only about 1 year in 10 sees frost after that.
Freeport against the rest of the dataset
At roughly 199 frost-free days, Freeport places 18,143 of 40,283 ZIP codes in this dataset. Within PA, it ranks 303 of 2,088.
Learn more
Two guides worth reading on 16055: the frost range, on how to read the range around Freeport's dates instead of trusting one, and local microclimates, on what one yard in Freeport can differ from the 16055 normal.