Goodhue, MN 55027 Frost Dates
55027, near Goodhue, MN: the frost window
Around 05/09 is the usual last spring frost, about 254 days away. Fall's first freeze usually shows up around 09/30, roughly 144 days after the last spring frost.
Zone 4b (-25 to -20°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 Goodhue, not a forecast for this year.
Stretching the season past the first frost
Goodhue's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/22 and only about 1 year in 10 sees frost after that.
Goodhue against the rest of the dataset
About 144 days separate Goodhue's last and first frost, putting it 36,401 of 40,283 ZIP codes nationally. Within MN, it ranks 657 of 943.
Learn more
Two guides worth reading on 55027: the frost range, on how to read the range around Goodhue's dates instead of trusting one, and local microclimates, on what one yard in Goodhue can differ from the 55027 normal.