Eastport, ME 04648 Frost Dates
When can you plant in Eastport, ME?
Around 05/03 is the usual last spring frost, about 248 days away. The first fall frost typically arrives around 10/09, about 158 frost-free days later.
Eastport sits in USDA Zone 5b (-15 to -10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 6 weeks of growing season left in Eastport 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
05/03 is the middle of 30 years of NOAA records, not a promise. Plant by 04/22 and you're betting against frost in roughly 9 years out of 10. 05/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Eastport compares
About 158 days separate Eastport's last and first frost, putting it 33,042 of 40,283 ZIP codes nationally. Within ME, it ranks 180 of 456.
Learn more
local microclimates covers what one yard in Eastport can differ from the 04648 normal. zone vs. frost date covers why Zone 5b and Eastport's frost date answer different questions.