Yorktown, TX 77974 Frost Dates
77974, near Yorktown, TX: the frost window
Around 02/17 is the usual last spring frost, about 173 days away. Fall's first freeze usually shows up around 12/08, roughly 299 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Yorktown 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
Yorktown's growing season runs out in roughly 15 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
02/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/12 and only about 1 year in 10 sees frost after that.
Yorktown against the rest of the dataset
Yorktown's growing season runs about 299 days, ranking 4,178 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 485 of 2,558.
Learn more
Two guides worth reading on 77974: local microclimates, on what one yard in Yorktown can differ from the 77974 normal, and zone vs. frost date, on why Zone 9a and Yorktown's frost date answer different questions.