FrostDateCheck

Shamokin, PA 17964 Frost Dates

When can you plant in Shamokin, PA?

Zone 6b

Typically, the last spring freeze lands around 04/27, roughly 242 days out. The first fall frost typically arrives around 10/20, about 172 frost-free days later.

The USDA Plant Hardiness Zone Map puts Shamokin in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.

What to do before the first frost

About 8 weeks of growing season left in Shamokin before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

Why 04/27 isn't a guarantee

04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/12 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Shamokin compares

At roughly 172 frost-free days, Shamokin places 28,259 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,346 of 2,088.

Learn more

local microclimates covers what one yard in Shamokin can differ from the 17964 normal. zone vs. frost date covers why Zone 6b and Shamokin's frost date answer different questions.