FrostDateCheck

Bowmanstown, PA 18212 Frost Dates

When can you plant in Bowmanstown, PA?

Zone 6b

The last spring frost here typically falls around 04/21, about 236 days from today. The first fall frost typically arrives around 10/23, about 184 frost-free days later.

Bowmanstown sits in USDA Zone 6b (-5 to 0°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 Bowmanstown before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

04/21 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Bowmanstown compares

Bowmanstown's growing season runs about 184 days, ranking 23,601 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 811 of 2,088.

Learn more

the frost range covers how to read the range around Bowmanstown's dates instead of trusting one. local microclimates covers what one yard in Bowmanstown can differ from the 18212 normal.