Clifton Heights, PA 19026 Frost Dates
Clifton Heights, PA: when does the frost end?
Typically, the last spring freeze lands around 04/02, roughly 217 days out. Fall's first freeze usually shows up around 11/10, roughly 224 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Clifton Heights in Zone 7b (5 to 10°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
With roughly 11 weeks until Clifton Heights's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/02 isn't a guarantee
04/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/13 and only about 1 year in 10 sees frost after that.
Clifton Heights against the rest of the dataset
Clifton Heights's growing season runs about 224 days, ranking 11,825 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 15 of 2,088.
Learn more
Before leaning on 19026's figures: the frost range explains how to read the range around Clifton Heights's dates instead of trusting one, while local microclimates explains what one yard in Clifton Heights can differ from the 19026 normal.