Carver, MN 55315 Frost Dates
55315, near Carver, MN: the frost window
Typically, the last spring freeze lands around 05/05, roughly 250 days out. Fall's first freeze usually shows up around 10/05, roughly 151 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Carver 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
Carver'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.
Why 05/05 isn't a guarantee
05/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/19 and only about 1 year in 10 sees frost after that.
Carver against the rest of the dataset
At roughly 151 frost-free days, Carver places 35,002 of 40,283 ZIP codes in this dataset. Within MN, it ranks 486 of 943.
Learn more
Two guides worth reading on 55315: the frost range, on how to read the range around Carver's dates instead of trusting one, and local microclimates, on what one yard in Carver can differ from the 55315 normal.