Myerstown, PA 17067 Frost Dates
Frost dates for Myerstown, PA, ZIP 17067
The last spring frost here typically falls around 04/20, about 235 days from today. The first fall frost typically arrives around 10/25, about 185 frost-free days later.
The USDA Plant Hardiness Zone Map puts Myerstown 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 Myerstown has about 8 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.
The actual range around Myerstown's last frost
04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Myerstown compares
Myerstown's growing season runs about 185 days, ranking 23,161 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 697 of 2,088.
Learn more
zone vs. frost date explains why Zone 7a and Myerstown's frost date answer different questions, and the frost range explains how to read the range around Myerstown's dates instead of trusting one.