McFall, MO 64657 Frost Dates
64657, near McFall, MO: the frost window
Around 04/17 is the usual last spring frost, about 232 days away. Fall's first freeze usually shows up around 10/21, roughly 185 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts McFall 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
McFall'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 McFall's last frost
04/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/30 and only about 1 year in 10 sees frost after that.
McFall against the rest of the dataset
At roughly 185 frost-free days, McFall places 23,351 of 40,283 ZIP codes in this dataset. Within MO, it ranks 898 of 1,129.
Learn more
Two guides worth reading on 64657: zone vs. frost date, on why Zone 6a and McFall's frost date answer different questions, and the frost range, on how to read the range around McFall's dates instead of trusting one.