Bath, ME 04579 Frost Dates
When can you plant in Bath, ME?
The last spring frost here typically falls around 05/08, about 253 days from today. The first fall frost typically arrives around 10/07, about 151 frost-free days later.
The USDA Plant Hardiness Zone Map puts Bath in Zone 5b (-15 to -10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 6 weeks of growing season left in Bath before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/08 is the middle of 30 years of NOAA records, not a promise. Plant by 04/26 and you're betting against frost in roughly 9 years out of 10. 05/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bath compares
At roughly 151 frost-free days, Bath places 34,976 of 40,283 ZIP codes in this dataset. Within ME, it ranks 250 of 456.
Learn more
the frost range covers how to read the range around Bath's dates instead of trusting one. local microclimates covers what one yard in Bath can differ from the 04579 normal.