Rio Vista, TX 76093 Frost Dates
76093, near Rio Vista, TX: the frost window
Around 03/17 is the usual last spring frost, about 201 days away. Fall's first freeze usually shows up around 11/12, roughly 240 days after the last spring frost.
Rio Vista 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
Rio Vista'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.
How much risk comes with planting early here
03/17 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 04/06 and only about 1 year in 10 sees frost after that.
Rio Vista against the rest of the dataset
Rio Vista's growing season runs about 240 days, ranking 8,703 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 1,935 of 2,558.
Learn more
Two guides worth reading on 76093: the frost range, on how to read the range around Rio Vista's dates instead of trusting one, and local microclimates, on what one yard in Rio Vista can differ from the 76093 normal.