Auburn, ME 04276 Frost Dates
Frost dates for Auburn, ME, ZIP 04276
The last spring frost here typically falls around 05/04, about 249 days from today. The first fall frost typically arrives around 10/06, about 155 frost-free days later.
Auburn 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.
What to do before the first frost
Zone 5a around Auburn has about 6 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Auburn's last frost
05/04 is the middle of 30 years of NOAA records, not a promise. Plant by 04/23 and you're betting against frost in roughly 9 years out of 10. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Auburn compares
At roughly 155 frost-free days, Auburn places 33,924 of 40,283 ZIP codes in this dataset. Within ME, it ranks 198 of 456.
Learn more
local microclimates explains what one yard in Auburn can differ from the 04276 normal, and zone vs. frost date explains why Zone 5a and Auburn's frost date answer different questions.