Conyngham, PA 18219 Frost Dates
Frost dates for Conyngham, PA, ZIP 18219
The last spring frost here typically falls around 04/30, about 245 days from today. The first fall frost typically arrives around 10/22, about 175 frost-free days later.
Conyngham sits in USDA Zone 6b (-5 to 0°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 6b around Conyngham has about 8 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.
The actual range around Conyngham's last frost
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Conyngham compares
At roughly 175 frost-free days, Conyngham places 26,995 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,183 of 2,088.
Learn more
zone vs. frost date explains why Zone 6b and Conyngham's frost date answer different questions, and the frost range explains how to read the range around Conyngham's dates instead of trusting one.