New Alexandria, PA 15619 Frost Dates
15619, near New Alexandria, PA: the frost window
Around 05/01 is the usual last spring frost, about 246 days away. Fall's first freeze usually shows up around 10/13, roughly 164 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts New Alexandria in Zone 6b (-5 to 0°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
New Alexandria'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.
The actual range around New Alexandria's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/19 and only about 1 year in 10 sees frost after that.
New Alexandria against the rest of the dataset
New Alexandria's growing season runs about 164 days, ranking 31,127 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,603 of 2,088.
Learn more
Two guides worth reading on 15619: the frost range, on how to read the range around New Alexandria's dates instead of trusting one, and local microclimates, on what one yard in New Alexandria can differ from the 15619 normal.