Mill Spring, MO 63952 Frost Dates
63952, near Mill Spring, 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 10/26, roughly 199 days after the last spring frost.
Zone 7a (0 to 5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Mill Spring, not a forecast for this year.
Stretching the season past the first frost
Mill Spring'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 Mill Spring's last frost
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 04/24 and only about 1 year in 10 sees frost after that.
Mill Spring against the rest of the dataset
About 199 days separate Mill Spring's last and first frost, putting it 18,228 of 40,283 ZIP codes nationally. Within MO, it ranks 460 of 1,129.
Learn more
Two guides worth reading on 63952: the frost range, on how to read the range around Mill Spring's dates instead of trusting one, and local microclimates, on what one yard in Mill Spring can differ from the 63952 normal.