Sligo, PA 16255 Frost Dates
Frost dates for Sligo, PA, ZIP 16255
Around 05/10 is the usual last spring frost, about 255 days away. The first fall frost typically arrives around 10/12, about 155 frost-free days later.
Sligo sits in USDA Zone 6a (-10 to -5°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.
What to do before the first frost
Zone 6a around Sligo has about 6 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Sligo's last frost
05/10 is the middle of 30 years of NOAA records, not a promise. Plant by 04/24 and you're betting against frost in roughly 9 years out of 10. 05/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sligo compares
At roughly 155 frost-free days, Sligo places 34,070 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,807 of 2,088.
Learn more
the frost range explains how to read the range around Sligo's dates instead of trusting one, and local microclimates explains what one yard in Sligo can differ from the 16255 normal.