Matamoras, PA 18336 Frost Dates
Matamoras, PA: when does the frost end?
Typically, the last spring freeze lands around 05/05, roughly 250 days out. Fall's first freeze usually shows up around 10/10, roughly 158 days after the last spring frost.
Matamoras 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
With roughly 6 weeks until Matamoras's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 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.
Matamoras against the rest of the dataset
About 158 days separate Matamoras's last and first frost, putting it 32,992 of 40,283 ZIP codes nationally. Within PA, it ranks 1,738 of 2,088.
Learn more
Before leaning on 18336's figures: local microclimates explains what one yard in Matamoras can differ from the 18336 normal, while zone vs. frost date explains why Zone 6b and Matamoras's frost date answer different questions.