Rockland, ME 04862 Frost Dates
When can you plant in Rockland, ME?
Around 04/27 is the usual last spring frost, about 242 days away. The first fall frost typically arrives around 10/19, about 175 frost-free days later.
The USDA Plant Hardiness Zone Map puts Rockland 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 7 weeks of growing season left in Rockland 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
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Rockland compares
At roughly 175 frost-free days, Rockland places 26,860 of 40,283 ZIP codes in this dataset. Within ME, it ranks 70 of 456.
Learn more
the frost range covers how to read the range around Rockland's dates instead of trusting one. local microclimates covers what one yard in Rockland can differ from the 04862 normal.