McSherrystown, PA 17344 Frost Dates
When can you plant in McSherrystown, PA?
Typically, the last spring freeze lands around 04/27, roughly 242 days out. The first fall frost typically arrives around 10/18, about 174 frost-free days later.
McSherrystown 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 7 weeks of growing season left in McSherrystown before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around McSherrystown's last frost
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. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How McSherrystown compares
McSherrystown's growing season runs about 174 days, ranking 27,471 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,302 of 2,088.
Learn more
zone vs. frost date covers why Zone 6b and McSherrystown's frost date answer different questions. the frost range covers how to read the range around McSherrystown's dates instead of trusting one.