Riverside, TX 77334 Frost Dates
77334, near Riverside, TX: the frost window
Typically, the last spring freeze lands around 03/02, roughly 186 days out. Fall's first freeze usually shows up around 11/26, roughly 272 days after the last spring frost.
Riverside sits in USDA Zone 9a (20 to 25°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
Riverside's growing season runs out in roughly 13 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
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 01/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/24 and only about 1 year in 10 sees frost after that.
Riverside against the rest of the dataset
About 272 days separate Riverside's last and first frost, putting it 5,401 of 40,283 ZIP codes nationally. Within TX, it ranks 1,002 of 2,558.
Learn more
Two guides worth reading on 77334: local microclimates, on what one yard in Riverside can differ from the 77334 normal, and zone vs. frost date, on why Zone 9a and Riverside's frost date answer different questions.