Granby, MO 64844 Frost Dates
64844, near Granby, MO: the frost window
Around 04/07 is the usual last spring frost, about 222 days away. Fall's first freeze usually shows up around 10/31, roughly 206 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Granby in Zone 7a (0 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
Granby'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.
The actual range around Granby's last frost
04/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/25 and only about 1 year in 10 sees frost after that.
Granby against the rest of the dataset
At roughly 206 frost-free days, Granby places 16,029 of 40,283 ZIP codes in this dataset. Within MO, it ranks 229 of 1,129.
Learn more
Two guides worth reading on 64844: the frost range, on how to read the range around Granby's dates instead of trusting one, and local microclimates, on what one yard in Granby can differ from the 64844 normal.