Ellsworth, ME 04646 Frost Dates
When can you plant in Ellsworth, ME?
Around 04/27 is the usual last spring frost, about 242 days away. The first fall frost typically arrives around 10/22, about 177 frost-free days later.
Zone 6b (-5 to 0°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 Ellsworth, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Ellsworth before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Ellsworth's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 and you're betting against frost in roughly 9 years out of 10. 05/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ellsworth compares
At roughly 177 frost-free days, Ellsworth places 26,075 of 40,283 ZIP codes in this dataset. Within ME, it ranks 39 of 456.
Learn more
zone vs. frost date covers why Zone 6b and Ellsworth's frost date answer different questions. the frost range covers how to read the range around Ellsworth's dates instead of trusting one.