San Leanna, TX 78747 Frost Dates
San Leanna, TX: when does the frost end?
Around 03/12 is the usual last spring frost, about 196 days away. Fall's first freeze usually shows up around 11/16, roughly 252 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts San Leanna 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 11 weeks until San Leanna'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
03/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/02 and only about 1 year in 10 sees frost after that.
San Leanna against the rest of the dataset
At roughly 252 frost-free days, San Leanna places 7,251 of 40,283 ZIP codes in this dataset. Within TX, it ranks 1,574 of 2,558.
Learn more
Before leaning on 78747's figures: zone vs. frost date explains why Zone 9a and San Leanna's frost date answer different questions, while the frost range explains how to read the range around San Leanna's dates instead of trusting one.