Valley-Hi, PA 17228 Frost Dates
Frost dates for Valley-Hi, PA, ZIP 17228
Around 04/29 is the usual last spring frost, about 244 days away. The first fall frost typically arrives around 10/13, about 167 frost-free days later.
Zone 6b (-5 to 0°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 Valley-Hi, not a forecast for this year.
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.
How much risk comes with planting early here
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
At roughly 167 frost-free days, Valley-Hi places 30,261 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,527 of 2,088.
Learn more
zone vs. frost date explains why Zone 6b and Valley-Hi's frost date answer different questions, and the frost range explains how to read the range around Valley-Hi's dates instead of trusting one.