Galveston, TX 77554 Frost Dates
Galveston, TX: when does the frost end?
Around 01/18 is the usual last spring frost, about 143 days away. Fall's first freeze usually shows up around 01/07, roughly 365 days after the last spring frost.
Zone 10a (30 to 35°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 Galveston, not a forecast for this year.
Stretching the season past the first frost
With roughly 19 weeks until Galveston's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 01/18 isn't a guarantee
01/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/21 and only about 1 year in 10 sees frost after that.
Galveston against the rest of the dataset
Galveston's growing season runs about 365 days, ranking 835 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 21 of 2,558.
Learn more
Before leaning on 77554's figures: the frost range explains how to read the range around Galveston's dates instead of trusting one, while local microclimates explains what one yard in Galveston can differ from the 77554 normal.