New Alexandria, PA 15624 Frost Dates
15624, near New Alexandria, PA: the frost window
Typically, the last spring freeze lands around 05/01, roughly 246 days out. Fall's first freeze usually shows up around 10/13, roughly 164 days after the last spring frost.
New Alexandria sits in USDA Zone 6b (-5 to 0°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
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.
Why 05/01 isn't a guarantee
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 31,129 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,605 of 2,088.
Learn more
Two guides worth reading on 15624: 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 15624 normal.