Coaldale, PA 16633 Frost Dates
16633, near Coaldale, PA: the frost window
Around 04/23 is the usual last spring frost, about 238 days away. Fall's first freeze usually shows up around 10/21, roughly 177 days after the last spring frost.
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 Coaldale, not a forecast for this year.
Stretching the season past the first frost
Coaldale'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 Coaldale's last frost
04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/08 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/11 and only about 1 year in 10 sees frost after that.
Coaldale against the rest of the dataset
Coaldale's growing season runs about 177 days, ranking 26,295 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,010 of 2,088.
Learn more
Two guides worth reading on 16633: zone vs. frost date, on why Zone 6b and Coaldale's frost date answer different questions, and the frost range, on how to read the range around Coaldale's dates instead of trusting one.