New Brighton, MN 55112 Frost Dates
New Brighton, MN: when does the frost end?
Around 04/23 is the usual last spring frost, about 238 days away. Fall's first freeze usually shows up around 10/20, roughly 177 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts New Brighton 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 8 weeks until New Brighton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around New Brighton's last frost
04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/07 and only about 1 year in 10 sees frost after that.
New Brighton against the rest of the dataset
New Brighton's growing season runs about 177 days, ranking 26,045 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 17 of 943.
Learn more
Before leaning on 55112's figures: the frost range explains how to read the range around New Brighton's dates instead of trusting one, while local microclimates explains what one yard in New Brighton can differ from the 55112 normal.