Ellsworth, ME 04472 Frost Dates
Ellsworth, ME: when does the frost end?
Around 05/08 is the usual last spring frost, about 253 days away. Fall's first freeze usually shows up around 10/09, roughly 152 days after the last spring frost.
Ellsworth 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.
Stretching the season past the first frost
With roughly 6 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
05/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/23 and only about 1 year in 10 sees frost after that.
Ellsworth against the rest of the dataset
At roughly 152 frost-free days, Ellsworth places 34,718 of 40,283 ZIP codes in this dataset. Within ME, it ranks 232 of 456.
Learn more
Before leaning on 04472's figures: the frost range explains how to read the range around Ellsworth's dates instead of trusting one, while local microclimates explains what one yard in Ellsworth can differ from the 04472 normal.