FrostDateCheck

Moosic, PA 18502 Frost Dates

18502, near Moosic, PA: the frost window

Zone 6b

Typically, the last spring freeze lands around 04/23, roughly 238 days out. Fall's first freeze usually shows up around 10/20, roughly 178 days after the last spring frost.

Zone 6b (-5 to 0°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 Moosic, not a forecast for this year.

Stretching the season past the first frost

Moosic'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.

Why 04/23 isn't a guarantee

04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/10 and only about 1 year in 10 sees frost after that.

Moosic against the rest of the dataset

About 178 days separate Moosic's last and first frost, putting it 25,685 of 40,283 ZIP codes nationally. Within PA, it ranks 901 of 2,088.

Learn more

Two guides worth reading on 18502: local microclimates, on what one yard in Moosic can differ from the 18502 normal, and zone vs. frost date, on why Zone 6b and Moosic's frost date answer different questions.