Brownsville, PA 15413 Frost Dates
Frost dates for Brownsville, PA, ZIP 15413
Around 04/28 is the usual last spring frost, about 243 days away. The first fall frost typically arrives around 10/21, about 175 frost-free days later.
Brownsville sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 6b around Brownsville has about 8 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.
How much risk comes with planting early here
04/28 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Brownsville compares
At roughly 175 frost-free days, Brownsville places 26,973 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,172 of 2,088.
Learn more
local microclimates explains what one yard in Brownsville can differ from the 15413 normal, and zone vs. frost date explains why Zone 6b and Brownsville's frost date answer different questions.