Sykesville, PA 15863 Frost Dates
15863, near Sykesville, PA: the frost window
Typically, the last spring freeze lands around 05/06, roughly 251 days out. Fall's first freeze usually shows up around 10/14, roughly 160 days after the last spring frost.
Sykesville sits in USDA Zone 6a (-10 to -5°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
Sykesville's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/06 isn't a guarantee
05/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/23 and only about 1 year in 10 sees frost after that.
Sykesville against the rest of the dataset
At roughly 160 frost-free days, Sykesville places 32,429 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,708 of 2,088.
Learn more
Two guides worth reading on 15863: local microclimates, on what one yard in Sykesville can differ from the 15863 normal, and zone vs. frost date, on why Zone 6a and Sykesville's frost date answer different questions.