Presque Isle, ME 04775 Frost Dates
Frost dates for Presque Isle, ME, ZIP 04775
Around 05/30 is the usual last spring frost, about 275 days away. The first fall frost typically arrives around 09/13, about 106 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 2 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
05/30 is the middle of 30 years of NOAA records, not a promise. Plant by 05/12 and you're betting against frost in roughly 9 years out of 10. 06/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Presque Isle compares
About 106 days separate Presque Isle's last and first frost, putting it 39,579 of 40,283 ZIP codes nationally. Within ME, it ranks 455 of 456.
Learn more
local microclimates explains what one yard in Presque Isle can differ from the 04775 normal, and zone vs. frost date explains why Zone 4a and Presque Isle's frost date answer different questions.