Richland, PA 17039 Frost Dates
When can you plant in Richland, PA?
Around 04/20 is the usual last spring frost, about 235 days away. The first fall frost typically arrives around 10/25, about 185 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 Richland, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Richland before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/20 isn't a guarantee
04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Richland compares
About 185 days separate Richland's last and first frost, putting it 23,213 of 40,283 ZIP codes nationally. Within PA, it ranks 713 of 2,088.
Learn more
the frost range covers how to read the range around Richland's dates instead of trusting one. local microclimates covers what one yard in Richland can differ from the 17039 normal.