Chokio, MN 56221 Frost Dates
When can you plant in Chokio, MN?
The last spring frost here typically falls around 05/01, about 246 days from today. The first fall frost typically arrives around 10/08, about 159 frost-free days later.
The USDA Plant Hardiness Zone Map puts Chokio in Zone 4b (-25 to -20°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 6 weeks of growing season left in Chokio before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/01 isn't a guarantee
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Chokio compares
Chokio's growing season runs about 159 days, ranking 32,747 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 273 of 943.
Learn more
zone vs. frost date covers why Zone 4b and Chokio's frost date answer different questions. the frost range covers how to read the range around Chokio's dates instead of trusting one.