East McKeesport, PA 15137 Frost Dates
15137, near East McKeesport, PA: the frost window
Around 05/02 is the usual last spring frost, about 247 days away. Fall's first freeze usually shows up around 10/20, roughly 170 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts East McKeesport in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
East McKeesport's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around East McKeesport's last frost
05/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/20 and only about 1 year in 10 sees frost after that.
East McKeesport against the rest of the dataset
East McKeesport's growing season runs about 170 days, ranking 29,053 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,484 of 2,088.
Learn more
Two guides worth reading on 15137: zone vs. frost date, on why Zone 6b and East McKeesport's frost date answer different questions, and the frost range, on how to read the range around East McKeesport's dates instead of trusting one.