Presque Isle, ME 04761 Frost Dates
Presque Isle, ME: when does the frost end?
Typically, the last spring freeze lands around 05/27, roughly 272 days out. Fall's first freeze usually shows up around 09/18, roughly 115 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Presque Isle in Zone 4b (-25 to -20°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 3 weeks until Presque Isle's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Presque Isle's last frost
05/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/10 and only about 1 year in 10 sees frost after that.
Presque Isle against the rest of the dataset
About 115 days separate Presque Isle's last and first frost, putting it 39,305 of 40,283 ZIP codes nationally. Within ME, it ranks 450 of 456.
Learn more
Before leaning on 04761's figures: local microclimates explains what one yard in Presque Isle can differ from the 04761 normal, while zone vs. frost date explains why Zone 4b and Presque Isle's frost date answer different questions.