Carterville, MO 64835 Frost Dates
64835, near Carterville, MO: the frost window
Around 04/09 is the usual last spring frost, about 224 days away. Fall's first freeze usually shows up around 10/27, roughly 200 days after the last spring frost.
Carterville sits in USDA Zone 7a (0 to 5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Carterville's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/09 isn't a guarantee
04/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/26 and only about 1 year in 10 sees frost after that.
Carterville against the rest of the dataset
About 200 days separate Carterville's last and first frost, putting it 17,817 of 40,283 ZIP codes nationally. Within MO, it ranks 395 of 1,129.
Learn more
Two guides worth reading on 64835: zone vs. frost date, on why Zone 7a and Carterville's frost date answer different questions, and the frost range, on how to read the range around Carterville's dates instead of trusting one.