Delaware Water Gap, PA 18356 Frost Dates
Frost dates for Delaware Water Gap, PA, ZIP 18356
Around 05/06 is the usual last spring frost, about 251 days away. The first fall frost typically arrives around 10/08, about 154 frost-free days later.
The USDA Plant Hardiness Zone Map puts Delaware Water Gap in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 6b around Delaware Water Gap 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.
Why 05/06 isn't a guarantee
05/06 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 and you're betting against frost in roughly 9 years out of 10. 05/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Delaware Water Gap compares
About 154 days separate Delaware Water Gap's last and first frost, putting it 34,395 of 40,283 ZIP codes nationally. Within PA, it ranks 1,902 of 2,088.
Learn more
local microclimates explains what one yard in Delaware Water Gap can differ from the 18356 normal, and zone vs. frost date explains why Zone 6b and Delaware Water Gap's frost date answer different questions.