Tarentum, PA 15076 Frost Dates
When can you plant in Tarentum, PA?
Typically, the last spring freeze lands around 04/16, roughly 231 days out. The first fall frost typically arrives around 11/02, about 199 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 Tarentum, not a forecast for this year.
What to do before the first frost
About 9 weeks of growing season left in Tarentum 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
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 05/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Tarentum compares
Tarentum's growing season runs about 199 days, ranking 18,105 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 297 of 2,088.
Learn more
local microclimates covers what one yard in Tarentum can differ from the 15076 normal. zone vs. frost date covers why Zone 6b and Tarentum's frost date answer different questions.