Auburn, ME 04288 Frost Dates
Auburn, ME: when does the frost end?
Typically, the last spring freeze lands around 04/25, roughly 240 days out. Fall's first freeze usually shows up around 10/19, roughly 177 days after the last spring frost.
Auburn sits in USDA Zone 5b (-15 to -10°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
With roughly 7 weeks until Auburn's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Auburn's last frost
04/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Auburn against the rest of the dataset
About 177 days separate Auburn's last and first frost, putting it 26,040 of 40,283 ZIP codes nationally. Within ME, it ranks 31 of 456.
Learn more
Before leaning on 04288's figures: local microclimates explains what one yard in Auburn can differ from the 04288 normal, while zone vs. frost date explains why Zone 5b and Auburn's frost date answer different questions.