Rockland, ME 04854 Frost Dates
04854, near Rockland, ME: the frost window
The last spring frost here typically falls around 04/27, about 242 days from today. Fall's first freeze usually shows up around 10/25, roughly 178 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Rockland in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Rockland's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
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 05/08 and only about 1 year in 10 sees frost after that.
Rockland against the rest of the dataset
At roughly 178 frost-free days, Rockland places 25,667 of 40,283 ZIP codes in this dataset. Within ME, it ranks 8 of 456.
Learn more
Two guides worth reading on 04854: the frost range, on how to read the range around Rockland's dates instead of trusting one, and local microclimates, on what one yard in Rockland can differ from the 04854 normal.