Poynor, TX 75770 Frost Dates
75770, near Poynor, TX: the frost window
Typically, the last spring freeze lands around 03/18, roughly 202 days out. Fall's first freeze usually shows up around 11/12, roughly 242 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Poynor in Zone 8b (15 to 20°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
Poynor'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.
The actual range around Poynor's last frost
03/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/06 and only about 1 year in 10 sees frost after that.
Poynor against the rest of the dataset
About 242 days separate Poynor's last and first frost, putting it 8,405 of 40,283 ZIP codes nationally. Within TX, it ranks 1,887 of 2,558.
Learn more
Two guides worth reading on 75770: zone vs. frost date, on why Zone 8b and Poynor's frost date answer different questions, and the frost range, on how to read the range around Poynor's dates instead of trusting one.