Texarkana, TX 75505 Frost Dates
Texarkana, TX: when does the frost end?
Typically, the last spring freeze lands around 03/15, roughly 199 days out. Fall's first freeze usually shows up around 11/17, roughly 249 days after the last spring frost.
Texarkana 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
With roughly 12 weeks until Texarkana's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/15 isn't a guarantee
03/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/04 and only about 1 year in 10 sees frost after that.
Texarkana against the rest of the dataset
Texarkana's growing season runs about 249 days, ranking 7,607 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 1,709 of 2,558.
Learn more
Before leaning on 75505's figures: zone vs. frost date explains why Zone 8b and Texarkana's frost date answer different questions, while the frost range explains how to read the range around Texarkana's dates instead of trusting one.