Ellsworth, ME 04685 Frost Dates
Ellsworth, ME: when does the frost end?
Around 04/27 is the usual last spring frost, about 242 days away. Fall's first freeze usually shows up around 10/22, roughly 177 days after the last spring frost.
Ellsworth sits in USDA Zone 6b (-5 to 0°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.
Stretching the season past the first frost
With roughly 8 weeks until Ellsworth's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Ellsworth's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/08 and only about 1 year in 10 sees frost after that.
Ellsworth against the rest of the dataset
About 177 days separate Ellsworth's last and first frost, putting it 26,086 of 40,283 ZIP codes nationally. Within ME, it ranks 50 of 456.
Learn more
Before leaning on 04685's figures: zone vs. frost date explains why Zone 6b and Ellsworth's frost date answer different questions, while the frost range explains how to read the range around Ellsworth's dates instead of trusting one.