Franklintown, PA 17323 Frost Dates
Frost dates for Franklintown, PA, ZIP 17323
The last spring frost here typically falls around 04/09, about 224 days from today. The first fall frost typically arrives around 11/01, about 205 frost-free days later.
Zone 7a (0 to 5°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 Franklintown, not a forecast for this year.
What to do before the first frost
Zone 7a around Franklintown has about 9 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 04/09 isn't a guarantee
04/09 is the middle of 30 years of NOAA records, not a promise. Plant by 03/27 and you're betting against frost in roughly 9 years out of 10. 04/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Franklintown compares
About 205 days separate Franklintown's last and first frost, putting it 16,385 of 40,283 ZIP codes nationally. Within PA, it ranks 184 of 2,088.
Learn more
zone vs. frost date explains why Zone 7a and Franklintown's frost date answer different questions, and the frost range explains how to read the range around Franklintown's dates instead of trusting one.