Rockland, ME 04856 Frost Dates
Rockland, ME: when does the frost end?
Typically, the last spring freeze lands around 04/27, roughly 242 days out. Fall's first freeze usually shows up around 10/19, roughly 175 days after the last spring frost.
Rockland sits in USDA Zone 6a (-10 to -5°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 Rockland'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
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/09 and only about 1 year in 10 sees frost after that.
Rockland against the rest of the dataset
About 175 days separate Rockland's last and first frost, putting it 26,859 of 40,283 ZIP codes nationally. Within ME, it ranks 69 of 456.
Learn more
Before leaning on 04856's figures: the frost range explains how to read the range around Rockland's dates instead of trusting one, while local microclimates explains what one yard in Rockland can differ from the 04856 normal.