Austin, PA 16720 Frost Dates
16720, near Austin, PA: the frost window
The last spring frost here typically falls around 05/14, about 259 days from today. Fall's first freeze usually shows up around 10/04, roughly 143 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Austin in Zone 5b (-15 to -10°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
Austin's growing season runs out in roughly 5 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 Austin's last frost
05/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/30 and only about 1 year in 10 sees frost after that.
Austin against the rest of the dataset
Austin's growing season runs about 143 days, ranking 36,601 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,937 of 2,088.
Learn more
Two guides worth reading on 16720: zone vs. frost date, on why Zone 5b and Austin's frost date answer different questions, and the frost range, on how to read the range around Austin's dates instead of trusting one.