Kennedy, MN 56733 Frost Dates
Kennedy, MN: when does the frost end?
Around 05/08 is the usual last spring frost, about 253 days away. Fall's first freeze usually shows up around 09/30, roughly 142 days after the last spring frost.
Zone 4a (-30 to -25°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 Kennedy, not a forecast for this year.
Stretching the season past the first frost
With roughly 5 weeks until Kennedy's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/08 isn't a guarantee
05/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/24 and only about 1 year in 10 sees frost after that.
Kennedy against the rest of the dataset
Kennedy's growing season runs about 142 days, ranking 36,835 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 702 of 943.
Learn more
Before leaning on 56733's figures: local microclimates explains what one yard in Kennedy can differ from the 56733 normal, while zone vs. frost date explains why Zone 4a and Kennedy's frost date answer different questions.