Frost Dates for 78832 — Brackettville, Texas

Half of springs at Brackettville, TX see their last 32°F night by March 5; only one in ten is past it by February 7, and one in ten still has one after March 26. Planting tender crops after March 14 leaves a 30% risk of a frost on them, after March 19 20%, and after March 26 10%. The 21 days between the even-odds date and the one-in-ten date is wider than at 50% of the 339 Texas stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.

In fall the first 32°F night comes by November 24 in half of years, as early as November 3 one year in ten, and holds off past December 15 one year in ten. A hard freeze of 28°F follows 12 days later, around December 6; in spring the one-in-ten date for 28°F is March 15, 11 days before the 32°F one. The freeze-free season lasts 264 days in a typical year, longer than at 68% of the 339 Texas stations; it reaches 294 days one year in ten and falls short of 234 one year in ten. On average 24 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 13 days longer, to about March 18, and return around November 12. Nights of 24°F, cold enough to damage hardier plants, come in 87% of winters and 16°F in 19%.

August is the warmest month at Brackettville, TX, averaging 97°F by day and 73°F at night; January is the coldest at 64°F and 38°F. A freezing night is all but certain in every month from December to January (a 90% chance or more). From April to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 88% of years and March still brings one in 58% of years.

Warmth for growing adds up to 7,188 growing degree days a year (base 50°F), more than at 73% of the 351 Texas stations. 43% of them (3,094) have built up by the end of June, and August adds the most, 1,072. Precipitation totals 24.5 inches a year, most in May (3.5") and least in January (0.8"); May to September bring 60% of it.

The nearest other station, Del Rio 4NW, TX, 31 miles west of Brackettville, has a last frost 14 days earlier (February 19), a first frost 10 days later (December 4), a season 26 days longer.

Measurable snow is rare here: only 1 of 17 winters from 1991 to 2020 recorded 0.1 inch or more at Brackettville, TX, 0.6 miles away, so there is no typical first-snow date to plan around.

ZIP 78832 is under a mile from Brackettville, TX, which stands at 1,120 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 78832 in zone 9a, the band where the coldest night of the year averaged 20 to 25°F (-6.7 to -3.9°C) over 1991–2020; a zone describes winter lows, not frost dates.