Shavano Park, TX 78231 Frost Dates
When can you plant in Shavano Park, TX?
Around 02/26 is the usual last spring frost, about 182 days away. The first fall frost typically arrives around 11/28, about 277 frost-free days later.
The USDA Plant Hardiness Zone Map puts Shavano Park in Zone 9a (20 to 25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 13 weeks of growing season left in Shavano Park before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 02/26 isn't a guarantee
02/26 is the middle of 30 years of NOAA records, not a promise. Plant by 01/29 and you're betting against frost in roughly 9 years out of 10. 03/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Shavano Park compares
Shavano Park's growing season runs about 277 days, ranking 5,016 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 814 of 2,558.
Learn more
local microclimates covers what one yard in Shavano Park can differ from the 78231 normal. zone vs. frost date covers why Zone 9a and Shavano Park's frost date answer different questions.