Roma, TX 78584 Frost Dates
Roma, TX: when does the frost end?
Around 01/09 is the usual last spring frost, about 134 days away. Fall's first freeze usually shows up around 01/01, roughly 363 days after the last spring frost.
Zone 9b (25 to 30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Roma, not a forecast for this year.
Stretching the season past the first frost
With roughly 18 weeks until Roma's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 01/09 isn't a guarantee
01/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/17 and only about 1 year in 10 sees frost after that.
Roma against the rest of the dataset
Roma's growing season runs about 363 days, ranking 2,046 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 49 of 2,558.
Learn more
Before leaning on 78584's figures: zone vs. frost date explains why Zone 9b and Roma's frost date answer different questions, while the frost range explains how to read the range around Roma's dates instead of trusting one.