Hawthorn, PA 16230 Frost Dates
Frost dates for Hawthorn, PA, ZIP 16230
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.
Zone 6a (-10 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 Hawthorn, not a forecast for this year.
What to do before the first frost
Zone 6a around Hawthorn 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 Hawthorn compares
About 155 days separate Hawthorn's last and first frost, putting it 34,086 of 40,283 ZIP codes nationally. Within PA, it ranks 1,816 of 2,088.
Learn more
zone vs. frost date explains why Zone 6a and Hawthorn's frost date answer different questions, and the frost range explains how to read the range around Hawthorn's dates instead of trusting one.