Gardiner, ME 04357 Frost Dates
Gardiner, ME: when does the frost end?
The last spring frost here typically falls around 05/01, about 246 days from today. Fall's first freeze usually shows up around 10/11, roughly 163 days after the last spring frost.
Zone 5b (-15 to -10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Gardiner, not a forecast for this year.
Stretching the season past the first frost
With roughly 6 weeks until Gardiner's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Gardiner's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Gardiner against the rest of the dataset
About 163 days separate Gardiner's last and first frost, putting it 31,369 of 40,283 ZIP codes nationally. Within ME, it ranks 142 of 456.
Learn more
Before leaning on 04357's figures: the frost range explains how to read the range around Gardiner's dates instead of trusting one, while local microclimates explains what one yard in Gardiner can differ from the 04357 normal.