Maple Grove, MN 55311 Frost Dates
Maple Grove, MN: when does the frost end?
The last spring frost here typically falls around 04/30, about 245 days from today. Fall's first freeze usually shows up around 10/08, roughly 159 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Maple Grove in Zone 5a (-20 to -15°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
With roughly 6 weeks until Maple Grove'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
04/30 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 05/17 and only about 1 year in 10 sees frost after that.
Maple Grove against the rest of the dataset
Maple Grove's growing season runs about 159 days, ranking 32,581 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 241 of 943.
Learn more
Before leaning on 55311's figures: the frost range explains how to read the range around Maple Grove's dates instead of trusting one, while local microclimates explains what one yard in Maple Grove can differ from the 55311 normal.