Windber, PA 15963 Frost Dates
Frost dates for Windber, PA, ZIP 15963
Around 04/29 is the usual last spring frost, about 244 days away. The first fall frost typically arrives around 10/21, about 176 frost-free days later.
The USDA Plant Hardiness Zone Map puts Windber 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 Windber 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 04/29 isn't a guarantee
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 and you're betting against frost in roughly 9 years out of 10. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Windber compares
Windber's growing season runs about 176 days, ranking 26,447 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,028 of 2,088.
Learn more
local microclimates explains what one yard in Windber can differ from the 15963 normal, and zone vs. frost date explains why Zone 6a and Windber's frost date answer different questions.