Cressona, PA 17979 Frost Dates
When can you plant in Cressona, PA?
Typically, the last spring freeze lands around 04/10, roughly 225 days out. The first fall frost typically arrives around 10/31, about 202 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
About 9 weeks of growing season left in Cressona before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Cressona's last frost
04/10 is the middle of 30 years of NOAA records, not a promise. Plant by 03/29 and you're betting against frost in roughly 9 years out of 10. 04/26 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Cressona compares
About 202 days separate Cressona's last and first frost, putting it 17,273 of 40,283 ZIP codes nationally. Within PA, it ranks 228 of 2,088.
Learn more
local microclimates covers what one yard in Cressona can differ from the 17979 normal. zone vs. frost date covers why Zone 7a and Cressona's frost date answer different questions.