Clymer, PA 15734 Frost Dates
Clymer, PA: when does the frost end?
Typically, the last spring freeze lands around 05/10, roughly 255 days out. Fall's first freeze usually shows up around 10/12, roughly 155 days after the last spring frost.
Clymer sits in USDA Zone 6a (-10 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 6 weeks until Clymer's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/10 isn't a guarantee
05/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/28 and only about 1 year in 10 sees frost after that.
Clymer against the rest of the dataset
Clymer's growing season runs about 155 days, ranking 34,030 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,792 of 2,088.
Learn more
Before leaning on 15734's figures: local microclimates explains what one yard in Clymer can differ from the 15734 normal, while zone vs. frost date explains why Zone 6a and Clymer's frost date answer different questions.