Old Forge, PA 18518 Frost Dates
Old Forge, PA: when does the frost end?
Around 04/23 is the usual last spring frost, about 238 days away. Fall's first freeze usually shows up around 10/20, roughly 178 days after the last spring frost.
Zone 7a (0 to 5°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 Old Forge, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Old Forge'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
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.
Old Forge against the rest of the dataset
At roughly 178 frost-free days, Old Forge places 25,657 of 40,283 ZIP codes in this dataset. Within PA, it ranks 894 of 2,088.
Learn more
Before leaning on 18518's figures: the frost range explains how to read the range around Old Forge's dates instead of trusting one, while local microclimates explains what one yard in Old Forge can differ from the 18518 normal.