Old Town, ME 04453 Frost Dates
When can you plant in Old Town, ME?
Around 05/13 is the usual last spring frost, about 258 days away. The first fall frost typically arrives around 09/28, about 137 frost-free days later.
The USDA Plant Hardiness Zone Map puts Old Town in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 4 weeks of growing season left in Old Town before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Old Town's last frost
05/13 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. 05/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Old Town compares
Old Town's growing season runs about 137 days, ranking 37,501 of 40,283 US ZIP codes measured here, longest to shortest. Within ME, it ranks 382 of 456.
Learn more
zone vs. frost date covers why Zone 5a and Old Town's frost date answer different questions. the frost range covers how to read the range around Old Town's dates instead of trusting one.