Corsica, PA 16217 Frost Dates
When can you plant in Corsica, PA?
The last spring frost here typically falls around 05/06, about 251 days from today. The first fall frost typically arrives around 10/14, about 160 frost-free days later.
Zone 6a (-10 to -5°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 Corsica, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Corsica before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Corsica's last frost
05/06 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. 05/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Corsica compares
About 160 days separate Corsica's last and first frost, putting it 32,509 of 40,283 ZIP codes nationally. Within PA, it ranks 1,725 of 2,088.
Learn more
local microclimates covers what one yard in Corsica can differ from the 16217 normal. zone vs. frost date covers why Zone 6a and Corsica's frost date answer different questions.