Smethport, PA 16730 Frost Dates
When can you plant in Smethport, PA?
The last spring frost here typically falls around 05/18, about 263 days from today. The first fall frost typically arrives around 10/01, about 136 frost-free days later.
Smethport sits in USDA Zone 5b (-15 to -10°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
About 5 weeks of growing season left in Smethport before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/30 and you're betting against frost in roughly 9 years out of 10. 05/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Smethport compares
About 136 days separate Smethport's last and first frost, putting it 37,711 of 40,283 ZIP codes nationally. Within PA, it ranks 2,053 of 2,088.
Learn more
zone vs. frost date covers why Zone 5b and Smethport's frost date answer different questions. the frost range covers how to read the range around Smethport's dates instead of trusting one.