Starrucca, PA 18439 Frost Dates
Frost dates for Starrucca, PA, ZIP 18439
Around 05/14 is the usual last spring frost, about 259 days away. The first fall frost typically arrives around 10/01, about 140 frost-free days later.
The USDA Plant Hardiness Zone Map puts Starrucca in Zone 5b (-15 to -10°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
Zone 5b around Starrucca has about 5 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
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
At roughly 140 frost-free days, Starrucca places 37,181 of 40,283 ZIP codes in this dataset. Within PA, it ranks 2,042 of 2,088.
Learn more
zone vs. frost date explains why Zone 5b and Starrucca's frost date answer different questions, and the frost range explains how to read the range around Starrucca's dates instead of trusting one.