Kittanning, PA 15682 Frost Dates
When can you plant in Kittanning, 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.
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 Kittanning, not a forecast for this year.
What to do before the first frost
About 6 weeks of growing season left in Kittanning 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 Kittanning compares
Kittanning's growing season runs about 155 days, ranking 33,967 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,777 of 2,088.
Learn more
the frost range covers how to read the range around Kittanning's dates instead of trusting one. local microclimates covers what one yard in Kittanning can differ from the 15682 normal.