Granby, MO 64864 Frost Dates
Granby, MO: when does the frost end?
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
With roughly 9 weeks until Granby's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
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
Granby's growing season runs about 206 days, ranking 16,030 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 230 of 1,129.
Learn more
Before leaning on 64864's figures: local microclimates explains what one yard in Granby can differ from the 64864 normal, while zone vs. frost date explains why Zone 7a and Granby's frost date answer different questions.