Forty Fort, PA 18705 Frost Dates
Frost dates for Forty Fort, PA, ZIP 18705
Typically, the last spring freeze lands around 04/23, roughly 238 days out. The first fall frost typically arrives around 10/20, about 178 frost-free days later.
The USDA Plant Hardiness Zone Map puts Forty Fort 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 Forty Fort has about 8 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 Forty Fort's last frost
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/09 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Forty Fort compares
About 178 days separate Forty Fort's last and first frost, putting it 25,707 of 40,283 ZIP codes nationally. Within PA, it ranks 914 of 2,088.
Learn more
local microclimates explains what one yard in Forty Fort can differ from the 18705 normal, and zone vs. frost date explains why Zone 6b and Forty Fort's frost date answer different questions.