FrostDateCheck

Simonton, TX 77476 Frost Dates

When can you plant in Simonton, TX?

Zone 9a

The last spring frost here typically falls around 02/09, about 165 days from today. The first fall frost typically arrives around 12/13, about 305 frost-free days later.

Simonton sits in USDA Zone 9a (20 to 25°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.

What to do before the first frost

About 15 weeks of growing season left in Simonton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

Why 02/09 isn't a guarantee

02/09 is the middle of 30 years of NOAA records, not a promise. Plant by 01/13 and you're betting against frost in roughly 9 years out of 10. 03/11 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Simonton compares

About 305 days separate Simonton's last and first frost, putting it 3,738 of 40,283 ZIP codes nationally. Within TX, it ranks 290 of 2,558.

Learn more

local microclimates covers what one yard in Simonton can differ from the 77476 normal. zone vs. frost date covers why Zone 9a and Simonton's frost date answer different questions.