Indiana, PA 16211 Frost Dates
When can you plant in Indiana, PA?
The last spring frost here typically falls around 05/10, about 255 days from today. The first fall frost typically arrives around 10/12, about 155 frost-free days later.
The USDA Plant Hardiness Zone Map puts Indiana 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
About 6 weeks of growing season left in Indiana before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/10 is the middle of 30 years of NOAA records, not a promise. Plant by 04/24 and you're betting against frost in roughly 9 years out of 10. 05/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Indiana compares
About 155 days separate Indiana's last and first frost, putting it 33,936 of 40,283 ZIP codes nationally. Within PA, it ranks 1,771 of 2,088.
Learn more
the frost range covers how to read the range around Indiana's dates instead of trusting one. local microclimates covers what one yard in Indiana can differ from the 16211 normal.