Cressona, PA 17933 Frost Dates
Frost dates for Cressona, PA, ZIP 17933
Around 04/30 is the usual last spring frost, about 245 days away. The first fall frost typically arrives around 10/22, about 175 frost-free days later.
Cressona 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.
What to do before the first frost
Zone 7a around Cressona 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.
Why 04/30 isn't a guarantee
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 Cressona compares
About 175 days separate Cressona's last and first frost, putting it 27,024 of 40,283 ZIP codes nationally. Within PA, it ranks 1,191 of 2,088.
Learn more
zone vs. frost date explains why Zone 7a and Cressona's frost date answer different questions, and the frost range explains how to read the range around Cressona's dates instead of trusting one.