East Prospect, PA 17317 Frost Dates
Frost dates for East Prospect, PA, ZIP 17317
The last spring frost here typically falls around 04/30, about 245 days from today. The first fall frost typically arrives around 10/10, about 162 frost-free days later.
The USDA Plant Hardiness Zone Map puts East Prospect in Zone 7a (0 to 5°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 7a around East Prospect 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.
How much risk comes with planting early here
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/16 and you're betting against frost in roughly 9 years out of 10. 05/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How East Prospect compares
About 162 days separate East Prospect's last and first frost, putting it 31,803 of 40,283 ZIP codes nationally. Within PA, it ranks 1,665 of 2,088.
Learn more
zone vs. frost date explains why Zone 7a and East Prospect's frost date answer different questions, and the frost range explains how to read the range around East Prospect's dates instead of trusting one.