Coplay, PA 18069 Frost Dates
Coplay, PA: when does the frost end?
Typically, the last spring freeze lands around 04/20, roughly 235 days out. Fall's first freeze usually shows up around 10/24, roughly 184 days after the last spring frost.
Coplay sits in USDA Zone 7a (0 to 5°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.
Stretching the season past the first frost
With roughly 8 weeks until Coplay's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Coplay's last frost
04/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Coplay against the rest of the dataset
Coplay's growing season runs about 184 days, ranking 23,532 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 787 of 2,088.
Learn more
Before leaning on 18069's figures: local microclimates explains what one yard in Coplay can differ from the 18069 normal, while zone vs. frost date explains why Zone 7a and Coplay's frost date answer different questions.