Phoenixville, PA 19481 Frost Dates
Phoenixville, PA: when does the frost end?
The last spring frost here typically falls around 04/18, about 233 days from today. Fall's first freeze usually shows up around 10/27, roughly 192 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 Phoenixville, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until Phoenixville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Phoenixville's last frost
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/04 and only about 1 year in 10 sees frost after that.
Phoenixville against the rest of the dataset
Phoenixville's growing season runs about 192 days, ranking 20,192 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 515 of 2,088.
Learn more
Before leaning on 19481's figures: local microclimates explains what one yard in Phoenixville can differ from the 19481 normal, while zone vs. frost date explains why Zone 7a and Phoenixville's frost date answer different questions.