Steelville, MO 65565 Frost Dates
When can you plant in Steelville, MO?
The last spring frost here typically falls around 04/26, about 241 days from today. The first fall frost typically arrives around 10/08, about 164 frost-free days later.
The USDA Plant Hardiness Zone Map puts Steelville in Zone 6a (-10 to -5°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 Steelville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/09 and you're betting against frost in roughly 9 years out of 10. 05/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Steelville compares
About 164 days separate Steelville's last and first frost, putting it 31,022 of 40,283 ZIP codes nationally. Within MO, it ranks 1,125 of 1,129.
Learn more
zone vs. frost date covers why Zone 6a and Steelville's frost date answer different questions. the frost range covers how to read the range around Steelville's dates instead of trusting one.