Wilkinsburg, PA 15208 Frost Dates
Frost dates for Wilkinsburg, PA, ZIP 15208
Around 04/18 is the usual last spring frost, about 233 days away. The first fall frost typically arrives around 10/28, about 193 frost-free days later.
The USDA Plant Hardiness Zone Map puts Wilkinsburg 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 Wilkinsburg has about 9 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 04/18 isn't a guarantee
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/02 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Wilkinsburg compares
Wilkinsburg's growing season runs about 193 days, ranking 19,760 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 414 of 2,088.
Learn more
local microclimates explains what one yard in Wilkinsburg can differ from the 15208 normal, and zone vs. frost date explains why Zone 6b and Wilkinsburg's frost date answer different questions.