Burnside, PA 15721 Frost Dates
15721, near Burnside, PA: the frost window
The last spring frost here typically falls around 05/04, about 249 days from today. Fall's first freeze usually shows up around 10/11, roughly 161 days after the last spring frost.
Zone 6a (-10 to -5°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 Burnside, not a forecast for this year.
Stretching the season past the first frost
Burnside's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Burnside's last frost
05/04 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 05/22 and only about 1 year in 10 sees frost after that.
Burnside against the rest of the dataset
At roughly 161 frost-free days, Burnside places 32,175 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,687 of 2,088.
Learn more
Two guides worth reading on 15721: local microclimates, on what one yard in Burnside can differ from the 15721 normal, and zone vs. frost date, on why Zone 6a and Burnside's frost date answer different questions.