Old Town, ME 04410 Frost Dates
04410, near Old Town, ME: the frost window
Around 05/13 is the usual last spring frost, about 258 days away. Fall's first freeze usually shows up around 09/28, roughly 137 days after the last spring frost.
Old Town sits in USDA Zone 5a (-20 to -15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Old Town's growing season runs out in roughly 4 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Old Town's last frost
05/13 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 05/28 and only about 1 year in 10 sees frost after that.
Old Town against the rest of the dataset
At roughly 137 frost-free days, Old Town places 37,498 of 40,283 ZIP codes in this dataset. Within ME, it ranks 379 of 456.
Learn more
Two guides worth reading on 04410: the frost range, on how to read the range around Old Town's dates instead of trusting one, and local microclimates, on what one yard in Old Town can differ from the 04410 normal.