Eastport, ME 04630 Frost Dates
Eastport, ME: when does the frost end?
The last spring frost here typically falls around 05/03, about 248 days from today. Fall's first freeze usually shows up around 10/09, roughly 158 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Eastport in Zone 5b (-15 to -10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 6 weeks until Eastport's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/03 isn't a guarantee
05/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/16 and only about 1 year in 10 sees frost after that.
Eastport against the rest of the dataset
At roughly 158 frost-free days, Eastport places 33,041 of 40,283 ZIP codes in this dataset. Within ME, it ranks 179 of 456.
Learn more
Before leaning on 04630's figures: the frost range explains how to read the range around Eastport's dates instead of trusting one, while local microclimates explains what one yard in Eastport can differ from the 04630 normal.