Three Springs, PA 17264 Frost Dates
When can you plant in Three Springs, PA?
Around 04/23 is the usual last spring frost, about 238 days away. The first fall frost typically arrives around 10/21, about 177 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 Three Springs, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Three Springs before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/08 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Three Springs compares
At roughly 177 frost-free days, Three Springs places 26,236 of 40,283 ZIP codes in this dataset. Within PA, it ranks 984 of 2,088.
Learn more
local microclimates covers what one yard in Three Springs can differ from the 17264 normal. zone vs. frost date covers why Zone 7a and Three Springs's frost date answer different questions.