Bosworth, MO 64623 Frost Dates
64623, near Bosworth, MO: the frost window
The last spring frost here typically falls around 04/16, about 231 days from today. Fall's first freeze usually shows up around 10/23, roughly 187 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Bosworth in Zone 6a (-10 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
Bosworth's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Bosworth's last frost
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/01 and only about 1 year in 10 sees frost after that.
Bosworth against the rest of the dataset
About 187 days separate Bosworth's last and first frost, putting it 22,615 of 40,283 ZIP codes nationally. Within MO, it ranks 862 of 1,129.
Learn more
Two guides worth reading on 64623: zone vs. frost date, on why Zone 6a and Bosworth's frost date answer different questions, and the frost range, on how to read the range around Bosworth's dates instead of trusting one.