Presque Isle, ME 04730 Frost Dates
04730, near Presque Isle, ME: the frost window
The last spring frost here typically falls around 05/27, about 272 days from today. Fall's first freeze usually shows up around 09/18, roughly 115 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
Presque Isle's growing season runs out in roughly 3 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
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
Presque Isle's growing season runs about 115 days, ranking 39,302 of 40,283 US ZIP codes measured here, longest to shortest. Within ME, it ranks 447 of 456.
Learn more
Two guides worth reading on 04730: the frost range, on how to read the range around Presque Isle's dates instead of trusting one, and local microclimates, on what one yard in Presque Isle can differ from the 04730 normal.