Grand Prairie, TX 75051 Frost Dates
75051, near Grand Prairie, TX: the frost window
Typically, the last spring freeze lands around 03/20, roughly 204 days out. Fall's first freeze usually shows up around 11/13, roughly 236 days after the last spring frost.
Grand Prairie sits in USDA Zone 8b (15 to 20°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Grand Prairie's growing season runs out in roughly 11 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/20 isn't a guarantee
03/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/08 and only about 1 year in 10 sees frost after that.
Grand Prairie against the rest of the dataset
About 236 days separate Grand Prairie's last and first frost, putting it 9,214 of 40,283 ZIP codes nationally. Within TX, it ranks 2,001 of 2,558.
Learn more
Two guides worth reading on 75051: local microclimates, on what one yard in Grand Prairie can differ from the 75051 normal, and zone vs. frost date, on why Zone 8b and Grand Prairie's frost date answer different questions.