Presque Isle, ME 04740 Frost Dates
Frost dates for Presque Isle, ME, ZIP 04740
Around 05/14 is the usual last spring frost, about 259 days away. The first fall frost typically arrives around 09/26, about 131 frost-free days later.
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.
What to do before the first frost
Zone 4a around Presque Isle has about 4 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Presque Isle's last frost
05/14 is the middle of 30 years of NOAA records, not a promise. Plant by 04/30 and you're betting against frost in roughly 9 years out of 10. 06/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Presque Isle compares
Presque Isle's growing season runs about 131 days, ranking 38,257 of 40,283 US ZIP codes measured here, longest to shortest. Within ME, it ranks 414 of 456.
Learn more
the frost range explains how to read the range around Presque Isle's dates instead of trusting one, and local microclimates explains what one yard in Presque Isle can differ from the 04740 normal.