Caruthersville, MO 63830 Frost Dates
Caruthersville, MO: when does the frost end?
Typically, the last spring freeze lands around 03/24, roughly 208 days out. Fall's first freeze usually shows up around 11/09, roughly 230 days after the last spring frost.
Caruthersville sits in USDA Zone 7b (5 to 10°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
With roughly 10 weeks until Caruthersville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/24 isn't a guarantee
03/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/08 and only about 1 year in 10 sees frost after that.
Caruthersville against the rest of the dataset
About 230 days separate Caruthersville's last and first frost, putting it 10,400 of 40,283 ZIP codes nationally. Within MO, it ranks 2 of 1,129.
Learn more
Before leaning on 63830's figures: the frost range explains how to read the range around Caruthersville's dates instead of trusting one, while local microclimates explains what one yard in Caruthersville can differ from the 63830 normal.