DuBois, PA 15856 Frost Dates
When can you plant in DuBois, PA?
Around 05/04 is the usual last spring frost, about 249 days away. The first fall frost typically arrives around 10/11, about 161 frost-free days later.
The USDA Plant Hardiness Zone Map puts DuBois 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
About 6 weeks of growing season left in DuBois before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/04 isn't a guarantee
05/04 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How DuBois compares
About 161 days separate DuBois's last and first frost, putting it 32,013 of 40,283 ZIP codes nationally. Within PA, it ranks 1,670 of 2,088.
Learn more
local microclimates covers what one yard in DuBois can differ from the 15856 normal. zone vs. frost date covers why Zone 6a and DuBois's frost date answer different questions.