Auburn, ME 04055 Frost Dates
Auburn, ME: when does the frost end?
The last spring frost here typically falls around 04/30, about 245 days from today. Fall's first freeze usually shows up around 10/20, roughly 172 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Auburn in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 8 weeks until Auburn's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/12 and only about 1 year in 10 sees frost after that.
Auburn against the rest of the dataset
About 172 days separate Auburn's last and first frost, putting it 28,182 of 40,283 ZIP codes nationally. Within ME, it ranks 79 of 456.
Learn more
Before leaning on 04055's figures: zone vs. frost date explains why Zone 5a and Auburn's frost date answer different questions, while the frost range explains how to read the range around Auburn's dates instead of trusting one.