West Lake Hills, TX 78730 Frost Dates
West Lake Hills, TX: when does the frost end?
Around 02/20 is the usual last spring frost, about 176 days away. Fall's first freeze usually shows up around 12/03, roughly 291 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts West Lake Hills 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 West Lake Hills'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
02/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/14 and only about 1 year in 10 sees frost after that.
West Lake Hills against the rest of the dataset
At roughly 291 frost-free days, West Lake Hills places 4,447 of 40,283 ZIP codes in this dataset. Within TX, it ranks 602 of 2,558.
Learn more
Before leaning on 78730's figures: zone vs. frost date explains why Zone 9a and West Lake Hills's frost date answer different questions, while the frost range explains how to read the range around West Lake Hills's dates instead of trusting one.