Uniontown, PA 15484 Frost Dates
Frost dates for Uniontown, PA, ZIP 15484
Typically, the last spring freeze lands around 04/28, roughly 243 days out. The first fall frost typically arrives around 10/21, about 175 frost-free days later.
The USDA Plant Hardiness Zone Map puts Uniontown in Zone 6b (-5 to 0°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 6b around Uniontown 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.
Why 04/28 isn't a guarantee
04/28 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Uniontown compares
Uniontown's growing season runs about 175 days, ranking 26,818 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,120 of 2,088.
Learn more
local microclimates explains what one yard in Uniontown can differ from the 15484 normal, and zone vs. frost date explains why Zone 6b and Uniontown's frost date answer different questions.