Sundown, TX 79372 Frost Dates
When can you plant in Sundown, TX?
Typically, the last spring freeze lands around 04/11, roughly 226 days out. The first fall frost typically arrives around 11/01, about 200 frost-free days later.
Zone 7b (5 to 10°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 Sundown, not a forecast for this year.
What to do before the first frost
About 9 weeks of growing season left in Sundown before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Sundown's last frost
04/11 is the middle of 30 years of NOAA records, not a promise. Plant by 03/26 and you're betting against frost in roughly 9 years out of 10. 04/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sundown compares
Sundown's growing season runs about 200 days, ranking 17,840 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 2,448 of 2,558.
Learn more
zone vs. frost date covers why Zone 7b and Sundown's frost date answer different questions. the frost range covers how to read the range around Sundown's dates instead of trusting one.