Starrucca, PA 18455 Frost Dates
When can you plant in Starrucca, PA?
The last spring frost here typically falls around 05/14, about 259 days from today. The first fall frost typically arrives around 10/01, about 140 frost-free days later.
Zone 5b (-15 to -10°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 Starrucca, not a forecast for this year.
What to do before the first frost
About 5 weeks of growing season left in Starrucca before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/14 isn't a guarantee
05/14 is the middle of 30 years of NOAA records, not a promise. Plant by 04/30 and you're betting against frost in roughly 9 years out of 10. 05/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Starrucca compares
About 140 days separate Starrucca's last and first frost, putting it 37,182 of 40,283 ZIP codes nationally. Within PA, it ranks 2,043 of 2,088.
Learn more
the frost range covers how to read the range around Starrucca's dates instead of trusting one. local microclimates covers what one yard in Starrucca can differ from the 18455 normal.