Iowa Colony, TX 77583 Frost Dates
77583, near Iowa Colony, TX: the frost window
Around 02/15 is the usual last spring frost, about 171 days away. Fall's first freeze usually shows up around 12/06, roughly 297 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Iowa Colony in Zone 9b (25 to 30°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
Iowa Colony's growing season runs out in roughly 14 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 Iowa Colony's last frost
02/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/15 and only about 1 year in 10 sees frost after that.
Iowa Colony against the rest of the dataset
Iowa Colony's growing season runs about 297 days, ranking 4,219 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 491 of 2,558.
Learn more
Two guides worth reading on 77583: local microclimates, on what one yard in Iowa Colony can differ from the 77583 normal, and zone vs. frost date, on why Zone 9b and Iowa Colony's frost date answer different questions.