Archbald, PA 18403 Frost Dates
When can you plant in Archbald, PA?
Typically, the last spring freeze lands around 04/23, roughly 238 days out. The first fall frost typically arrives around 10/20, about 178 frost-free days later.
Archbald sits in USDA Zone 6a (-10 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 8 weeks of growing season left in Archbald before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Archbald's last frost
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/09 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Archbald compares
At roughly 178 frost-free days, Archbald places 25,662 of 40,283 ZIP codes in this dataset. Within PA, it ranks 896 of 2,088.
Learn more
local microclimates covers what one yard in Archbald can differ from the 18403 normal. zone vs. frost date covers why Zone 6a and Archbald's frost date answer different questions.