Chester Heights, PA 19017 Frost Dates
Frost dates for Chester Heights, PA, ZIP 19017
The last spring frost here typically falls around 04/07, about 222 days from today. The first fall frost typically arrives around 11/04, about 209 frost-free days later.
Chester Heights sits in USDA Zone 7b (5 to 10°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.
What to do before the first frost
Zone 7b around Chester Heights has about 10 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 04/07 isn't a guarantee
04/07 is the middle of 30 years of NOAA records, not a promise. Plant by 03/26 and you're betting against frost in roughly 9 years out of 10. 04/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Chester Heights compares
At roughly 209 frost-free days, Chester Heights places 15,248 of 40,283 ZIP codes in this dataset. Within PA, it ranks 88 of 2,088.
Learn more
the frost range explains how to read the range around Chester Heights's dates instead of trusting one, and local microclimates explains what one yard in Chester Heights can differ from the 19017 normal.