Old Town, ME 04457 Frost Dates
When can you plant in Old Town, ME?
Typically, the last spring freeze lands around 05/04, roughly 249 days out. The first fall frost typically arrives around 10/06, about 153 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 6 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.
Why 05/04 isn't a guarantee
05/04 is the middle of 30 years of NOAA records, not a promise. Plant by 04/25 and you're betting against frost in roughly 9 years out of 10. 05/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Old Town compares
At roughly 153 frost-free days, Old Town places 34,510 of 40,283 ZIP codes in this dataset. Within ME, it ranks 213 of 456.
Learn more
the frost range covers how to read the range around Old Town's dates instead of trusting one. local microclimates covers what one yard in Old Town can differ from the 04457 normal.