Orbisonia, PA 17213 Frost Dates
17213, near Orbisonia, PA: the frost window
Around 04/21 is the usual last spring frost, about 236 days away. Fall's first freeze usually shows up around 10/24, roughly 185 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Orbisonia 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
Orbisonia'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
04/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/09 and only about 1 year in 10 sees frost after that.
Orbisonia against the rest of the dataset
Orbisonia's growing season runs about 185 days, ranking 23,295 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 729 of 2,088.
Learn more
Two guides worth reading on 17213: local microclimates, on what one yard in Orbisonia can differ from the 17213 normal, and zone vs. frost date, on why Zone 7a and Orbisonia's frost date answer different questions.