Wampum, PA 16157 Frost Dates
Frost dates for Wampum, PA, ZIP 16157
Around 05/15 is the usual last spring frost, about 260 days away. The first fall frost typically arrives around 10/03, about 140 frost-free days later.
Zone 6b (-5 to 0°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Wampum, not a forecast for this year.
What to do before the first frost
Zone 6b around Wampum has about 5 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 Wampum's last frost
05/15 is the middle of 30 years of NOAA records, not a promise. Plant by 04/30 and you're betting against frost in roughly 9 years out of 10. 06/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Wampum compares
About 140 days separate Wampum's last and first frost, putting it 37,128 of 40,283 ZIP codes nationally. Within PA, it ranks 2,017 of 2,088.
Learn more
local microclimates explains what one yard in Wampum can differ from the 16157 normal, and zone vs. frost date explains why Zone 6b and Wampum's frost date answer different questions.