Topton, PA 19539 Frost Dates
When can you plant in Topton, 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.
Zone 6b (-5 to 0°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Topton, not a forecast for this year.
What to do before the first frost
About 9 weeks of growing season left in Topton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/10 isn't a guarantee
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 Topton compares
Topton's growing season runs about 202 days, ranking 17,265 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 225 of 2,088.
Learn more
local microclimates covers what one yard in Topton can differ from the 19539 normal. zone vs. frost date covers why Zone 6b and Topton's frost date answer different questions.