Deer Park, TX 77530 Frost Dates
77530, near Deer Park, TX: the frost window
Around 02/20 is the usual last spring frost, about 176 days away. Fall's first freeze usually shows up around 12/04, roughly 292 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Deer Park 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
Deer Park'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.
How much risk comes with planting early here
02/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/23 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.
Deer Park against the rest of the dataset
At roughly 292 frost-free days, Deer Park places 4,341 of 40,283 ZIP codes in this dataset. Within TX, it ranks 536 of 2,558.
Learn more
Two guides worth reading on 77530: local microclimates, on what one yard in Deer Park can differ from the 77530 normal, and zone vs. frost date, on why Zone 9b and Deer Park's frost date answer different questions.