Keewatin, MN 55753 Frost Dates
When can you plant in Keewatin, MN?
The last spring frost here typically falls around 06/05, about 281 days from today. The first fall frost typically arrives around 09/08, about 93 frost-free days later.
The USDA Plant Hardiness Zone Map puts Keewatin in Zone 4a (-30 to -25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 2 weeks of growing season left in Keewatin before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 06/05 isn't a guarantee
06/05 is the middle of 30 years of NOAA records, not a promise. Plant by 05/22 and you're betting against frost in roughly 9 years out of 10. 06/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Keewatin compares
Keewatin's growing season runs about 93 days, ranking 39,870 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 927 of 943.
Learn more
local microclimates covers what one yard in Keewatin can differ from the 55753 normal. zone vs. frost date covers why Zone 4a and Keewatin's frost date answer different questions.