Shippenville, PA 16221 Frost Dates
Frost dates for Shippenville, PA, ZIP 16221
The last spring frost here typically falls around 05/10, about 255 days from today. The first fall frost typically arrives around 10/12, about 155 frost-free days later.
Shippenville sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 6a around Shippenville 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
05/10 is the middle of 30 years of NOAA records, not a promise. Plant by 04/24 and you're betting against frost in roughly 9 years out of 10. 05/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Shippenville compares
Shippenville's growing season runs about 155 days, ranking 34,093 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,821 of 2,088.
Learn more
zone vs. frost date explains why Zone 6a and Shippenville's frost date answer different questions, and the frost range explains how to read the range around Shippenville's dates instead of trusting one.