Shiremanstown, PA 17001 Frost Dates
Frost dates for Shiremanstown, PA, ZIP 17001
Around 04/09 is the usual last spring frost, about 224 days away. The first fall frost typically arrives around 11/01, about 205 frost-free days later.
The USDA Plant Hardiness Zone Map puts Shiremanstown 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 Shiremanstown 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 Shiremanstown compares
About 205 days separate Shiremanstown's last and first frost, putting it 16,330 of 40,283 ZIP codes nationally. Within PA, it ranks 168 of 2,088.
Learn more
the frost range explains how to read the range around Shiremanstown's dates instead of trusting one, and local microclimates explains what one yard in Shiremanstown can differ from the 17001 normal.