Presque Isle, ME 04732 Frost Dates
Presque Isle, ME: when does the frost end?
The last spring frost here typically falls around 05/14, about 259 days from today. Fall's first freeze usually shows up around 09/26, roughly 131 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Presque Isle in Zone 4a (-30 to -25°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 4 weeks until Presque Isle's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/14 isn't a guarantee
05/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/01 and only about 1 year in 10 sees frost after that.
Presque Isle against the rest of the dataset
About 131 days separate Presque Isle's last and first frost, putting it 38,256 of 40,283 ZIP codes nationally. Within ME, it ranks 413 of 456.
Learn more
Before leaning on 04732's figures: local microclimates explains what one yard in Presque Isle can differ from the 04732 normal, while zone vs. frost date explains why Zone 4a and Presque Isle's frost date answer different questions.