Hawthorn, PA 16245 Frost Dates
Frost dates for Hawthorn, PA, ZIP 16245
Around 05/10 is the usual last spring frost, about 255 days away. The first fall frost typically arrives around 10/12, about 155 frost-free days later.
The USDA Plant Hardiness Zone Map puts Hawthorn in Zone 6a (-10 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 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.
The actual range around Hawthorn's last frost
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
At roughly 155 frost-free days, Hawthorn places 34,088 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,818 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.