Montevideo, MN 56265 Frost Dates
Montevideo, MN: when does the frost end?
The last spring frost here typically falls around 05/04, about 249 days from today. Fall's first freeze usually shows up around 10/01, roughly 149 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Montevideo in Zone 4b (-25 to -20°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 5 weeks until Montevideo's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/04 isn't a guarantee
05/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 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.
Montevideo against the rest of the dataset
Montevideo's growing season runs about 149 days, ranking 35,515 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 562 of 943.
Learn more
Before leaning on 56265's figures: the frost range explains how to read the range around Montevideo's dates instead of trusting one, while local microclimates explains what one yard in Montevideo can differ from the 56265 normal.