Malvern, PA 19333 Frost Dates
Malvern, PA: when does the frost end?
Typically, the last spring freeze lands around 04/08, roughly 223 days out. Fall's first freeze usually shows up around 10/31, roughly 203 days after the last spring frost.
Malvern 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 9 weeks until Malvern's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/23 and only about 1 year in 10 sees frost after that.
Malvern against the rest of the dataset
Malvern's growing season runs about 203 days, ranking 16,919 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 210 of 2,088.
Learn more
Before leaning on 19333's figures: local microclimates explains what one yard in Malvern can differ from the 19333 normal, while zone vs. frost date explains why Zone 7a and Malvern's frost date answer different questions.