Valley-Hi, PA 15536 Frost Dates
Frost dates for Valley-Hi, PA, ZIP 15536
The last spring frost here typically falls around 04/29, about 244 days from today. The first fall frost typically arrives around 10/13, about 167 frost-free days later.
The USDA Plant Hardiness Zone Map puts Valley-Hi 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 Valley-Hi has about 7 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 04/29 isn't a guarantee
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/12 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Valley-Hi compares
About 167 days separate Valley-Hi's last and first frost, putting it 30,260 of 40,283 ZIP codes nationally. Within PA, it ranks 1,526 of 2,088.
Learn more
local microclimates explains what one yard in Valley-Hi can differ from the 15536 normal, and zone vs. frost date explains why Zone 6b and Valley-Hi's frost date answer different questions.