FrostDateCheck

Dublin, PA 18923 Frost Dates

When can you plant in Dublin, PA?

Zone 7a

Typically, the last spring freeze lands around 04/13, roughly 228 days out. The first fall frost typically arrives around 10/30, about 198 frost-free days later.

The USDA Plant Hardiness Zone Map puts Dublin in Zone 7a (0 to 5°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 9 weeks of growing season left in Dublin before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Dublin's last frost

04/13 is the middle of 30 years of NOAA records, not a promise. Plant by 04/01 and you're betting against frost in roughly 9 years out of 10. 04/27 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Dublin compares

At roughly 198 frost-free days, Dublin places 18,445 of 40,283 ZIP codes in this dataset. Within PA, it ranks 348 of 2,088.

Learn more

the frost range covers how to read the range around Dublin's dates instead of trusting one. local microclimates covers what one yard in Dublin can differ from the 18923 normal.