Ellsworth, ME 04653 Frost Dates
Frost dates for Ellsworth, ME, ZIP 04653
The last spring frost here typically falls around 04/27, about 242 days from today. The first fall frost typically arrives around 10/22, about 177 frost-free days later.
Ellsworth sits in USDA Zone 6a (-10 to -5°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
Zone 6a around Ellsworth has about 8 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.
How much risk comes with planting early here
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 and you're betting against frost in roughly 9 years out of 10. 05/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ellsworth compares
About 177 days separate Ellsworth's last and first frost, putting it 26,076 of 40,283 ZIP codes nationally. Within ME, it ranks 40 of 456.
Learn more
local microclimates explains what one yard in Ellsworth can differ from the 04653 normal, and zone vs. frost date explains why Zone 6a and Ellsworth's frost date answer different questions.