Ellsworth, ME 04679 Frost Dates
Frost dates for Ellsworth, ME, ZIP 04679
Around 04/27 is the usual last spring frost, about 242 days away. The first fall frost typically arrives around 10/22, about 177 frost-free days later.
The USDA Plant Hardiness Zone Map puts Ellsworth in Zone 6a (-10 to -5°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 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
At roughly 177 frost-free days, Ellsworth places 26,085 of 40,283 ZIP codes in this dataset. Within ME, it ranks 49 of 456.
Learn more
the frost range explains how to read the range around Ellsworth's dates instead of trusting one, and local microclimates explains what one yard in Ellsworth can differ from the 04679 normal.