Presque Isle, ME 04747 Frost Dates
Presque Isle, ME: when does the frost end?
Typically, the last spring freeze lands around 05/13, roughly 258 days out. Fall's first freeze usually shows up around 09/30, roughly 138 days after the last spring frost.
Presque Isle sits in USDA Zone 4b (-25 to -20°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 5 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
05/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/30 and only about 1 year in 10 sees frost after that.
Presque Isle against the rest of the dataset
About 138 days separate Presque Isle's last and first frost, putting it 37,366 of 40,283 ZIP codes nationally. Within ME, it ranks 366 of 456.
Learn more
Before leaning on 04747's figures: zone vs. frost date explains why Zone 4b and Presque Isle's frost date answer different questions, while the frost range explains how to read the range around Presque Isle's dates instead of trusting one.