Presque Isle, ME 04769 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.
Zone 4a (-30 to -25°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Presque Isle, not a forecast for this year.
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
At roughly 131 frost-free days, Presque Isle places 38,259 of 40,283 ZIP codes in this dataset. Within ME, it ranks 416 of 456.
Learn more
Before leaning on 04769's figures: the frost range explains how to read the range around Presque Isle's dates instead of trusting one, while local microclimates explains what one yard in Presque Isle can differ from the 04769 normal.