Columbus, TX 78934 Frost Dates
78934, near Columbus, TX: the frost window
Around 03/09 is the usual last spring frost, about 193 days away. Fall's first freeze usually shows up around 11/20, roughly 255 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Columbus in Zone 9a (20 to 25°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
Columbus's growing season runs out in roughly 12 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 Columbus's last frost
03/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/31 and only about 1 year in 10 sees frost after that.
Columbus against the rest of the dataset
Columbus's growing season runs about 255 days, ranking 6,929 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 1,502 of 2,558.
Learn more
Two guides worth reading on 78934: local microclimates, on what one yard in Columbus can differ from the 78934 normal, and zone vs. frost date, on why Zone 9a and Columbus's frost date answer different questions.