Llano, TX 78643 Frost Dates
When can you plant in Llano, TX?
Around 03/20 is the usual last spring frost, about 204 days away. The first fall frost typically arrives around 11/10, about 235 frost-free days later.
Zone 8b (15 to 20°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 Llano, not a forecast for this year.
What to do before the first frost
About 11 weeks of growing season left in Llano before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
03/20 is the middle of 30 years of NOAA records, not a promise. Plant by 02/28 and you're betting against frost in roughly 9 years out of 10. 04/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Llano compares
Llano's growing season runs about 235 days, ranking 9,605 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 2,026 of 2,558.
Learn more
local microclimates covers what one yard in Llano can differ from the 78643 normal. zone vs. frost date covers why Zone 8b and Llano's frost date answer different questions.