Houston, MO 65444 Frost Dates
65444, near Houston, MO: the frost window
The last spring frost here typically falls around 04/10, about 225 days from today. Fall's first freeze usually shows up around 10/23, roughly 194 days after the last spring frost.
Zone 6b (-5 to 0°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 Houston, not a forecast for this year.
Stretching the season past the first frost
Houston'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 Houston's last frost
04/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/01 and only about 1 year in 10 sees frost after that.
Houston against the rest of the dataset
About 194 days separate Houston's last and first frost, putting it 19,497 of 40,283 ZIP codes nationally. Within MO, it ranks 637 of 1,129.
Learn more
Two guides worth reading on 65444: local microclimates, on what one yard in Houston can differ from the 65444 normal, and zone vs. frost date, on why Zone 6b and Houston's frost date answer different questions.