Roosevelt, MN 56673 Frost Dates
56673, near Roosevelt, MN: the frost window
The last spring frost here typically falls around 05/25, about 270 days from today. Fall's first freeze usually shows up around 09/22, roughly 119 days after the last spring frost.
Zone 3b (-35 to -30°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 Roosevelt, not a forecast for this year.
Stretching the season past the first frost
Roosevelt's growing season runs out in roughly 4 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Roosevelt's last frost
05/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/06 and only about 1 year in 10 sees frost after that.
Roosevelt against the rest of the dataset
Roosevelt's growing season runs about 119 days, ranking 39,187 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 883 of 943.
Learn more
Two guides worth reading on 56673: zone vs. frost date, on why Zone 3b and Roosevelt's frost date answer different questions, and the frost range, on how to read the range around Roosevelt's dates instead of trusting one.