Kelso, MO 63758 Frost Dates
Kelso, MO: when does the frost end?
Around 04/05 is the usual last spring frost, about 220 days away. Fall's first freeze usually shows up around 10/25, roughly 201 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Kelso in Zone 7a (0 to 5°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
With roughly 8 weeks until Kelso's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/21 and only about 1 year in 10 sees frost after that.
Kelso against the rest of the dataset
About 201 days separate Kelso's last and first frost, putting it 17,624 of 40,283 ZIP codes nationally. Within MO, it ranks 375 of 1,129.
Learn more
Before leaning on 63758's figures: the frost range explains how to read the range around Kelso's dates instead of trusting one, while local microclimates explains what one yard in Kelso can differ from the 63758 normal.