Horizon City, TX 79936 Frost Dates
Horizon City, TX: when does the frost end?
Typically, the last spring freeze lands around 03/02, roughly 186 days out. Fall's first freeze usually shows up around 11/20, roughly 261 days after the last spring frost.
Horizon City 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 Horizon City's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/02 isn't a guarantee
03/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/19 and only about 1 year in 10 sees frost after that.
Horizon City against the rest of the dataset
About 261 days separate Horizon City's last and first frost, putting it 6,387 of 40,283 ZIP codes nationally. Within TX, it ranks 1,287 of 2,558.
Learn more
Before leaning on 79936's figures: the frost range explains how to read the range around Horizon City's dates instead of trusting one, while local microclimates explains what one yard in Horizon City can differ from the 79936 normal.