FrostDateCheck

Three Rivers, TX 78071 Frost Dates

Three Rivers, TX: when does the frost end?

Zone 9a

The last spring frost here typically falls around 02/13, about 169 days from today. Fall's first freeze usually shows up around 12/03, roughly 299 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Three Rivers in Zone 9a (20 to 25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.

Stretching the season past the first frost

With roughly 14 weeks until Three Rivers's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

How much risk comes with planting early here

02/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/08 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/11 and only about 1 year in 10 sees frost after that.

Three Rivers against the rest of the dataset

At roughly 299 frost-free days, Three Rivers places 4,175 of 40,283 ZIP codes in this dataset. Within TX, it ranks 482 of 2,558.

Learn more

Before leaning on 78071's figures: local microclimates explains what one yard in Three Rivers can differ from the 78071 normal, while zone vs. frost date explains why Zone 9a and Three Rivers's frost date answer different questions.