Eagle Lake, TX 77454 Frost Dates
77454, near Eagle Lake, TX: the frost window
Around 02/21 is the usual last spring frost, about 177 days away. Fall's first freeze usually shows up around 12/01, roughly 285 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Eagle Lake 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
Eagle Lake'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.
Why 02/21 isn't a guarantee
02/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/14 and only about 1 year in 10 sees frost after that.
Eagle Lake against the rest of the dataset
At roughly 285 frost-free days, Eagle Lake places 4,643 of 40,283 ZIP codes in this dataset. Within TX, it ranks 707 of 2,558.
Learn more
Two guides worth reading on 77454: local microclimates, on what one yard in Eagle Lake can differ from the 77454 normal, and zone vs. frost date, on why Zone 9a and Eagle Lake's frost date answer different questions.