Strasburg, PA 17572 Frost Dates
When can you plant in Strasburg, PA?
Typically, the last spring freeze lands around 04/18, roughly 233 days out. The first fall frost typically arrives around 10/25, about 186 frost-free days later.
Zone 7a (0 to 5°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 Strasburg, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Strasburg before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Strasburg's last frost
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/04 and you're betting against frost in roughly 9 years out of 10. 05/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Strasburg compares
About 186 days separate Strasburg's last and first frost, putting it 22,814 of 40,283 ZIP codes nationally. Within PA, it ranks 672 of 2,088.
Learn more
zone vs. frost date covers why Zone 7a and Strasburg's frost date answer different questions. the frost range covers how to read the range around Strasburg's dates instead of trusting one.