Wyomissing, PA 19610 Frost Dates
19610, near Wyomissing, PA: the frost window
The last spring frost here typically falls around 04/14, about 229 days from today. Fall's first freeze usually shows up around 10/29, roughly 197 days after the last spring frost.
Zone 7a (0 to 5°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 Wyomissing, not a forecast for this year.
Stretching the season past the first frost
Wyomissing's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/14 isn't a guarantee
04/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/30 and only about 1 year in 10 sees frost after that.
Wyomissing against the rest of the dataset
About 197 days separate Wyomissing's last and first frost, putting it 18,645 of 40,283 ZIP codes nationally. Within PA, it ranks 357 of 2,088.
Learn more
Two guides worth reading on 19610: zone vs. frost date, on why Zone 7a and Wyomissing's frost date answer different questions, and the frost range, on how to read the range around Wyomissing's dates instead of trusting one.