Frost Dates for 75956 — Kirbyville, Texas

Half of springs at Town Bluff Dam, TX see their last 32°F night by March 9; only one in ten is past it by February 13, and one in ten still has one after April 2. Planting tender crops after March 18 leaves a 30% risk of a frost on them, after March 25 20%, and after April 2 10%. The 24 days between the even-odds date and the one-in-ten date is wider than at 76% 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 22 in half of years, as early as November 1 one year in ten, and holds off past December 11 one year in ten. A hard freeze of 28°F follows 15 days later, around December 7; in spring the one-in-ten date for 28°F is March 16, 17 days before the 32°F one. The freeze-free season lasts 258 days in a typical year, longer than at 62% of the 339 Texas stations; it reaches 288 days one year in ten and falls short of 229 one year in ten. On average 28 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 16 days longer, to about March 25, and return around November 8. Nights of 24°F, cold enough to damage hardier plants, come in 84% of winters and 16°F in 11%.

August is the warmest month at Town Bluff Dam, TX, averaging 92°F by day and 71°F at night; January is the coldest at 60°F and 38°F. A freezing night is all but certain in every month from December to January (a 90% chance or more). From May to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 89% of years and March still brings one in 63% of years and April still brings one in 11% of years.

Warmth for growing adds up to 6,341 growing degree days a year (base 50°F), fewer than at 52% of the 351 Texas stations. 42% of them (2,633) have built up by the end of June, and August adds the most, 978. Precipitation totals 59.3 inches a year, most in December (5.8") and least in July (4.2"); May to September bring 41% of it.

The nearest other station, Sam Rayburn Dam, TX, 29 miles north of Kirbyville, has a last frost 13 days earlier (February 24), a first frost 9 days later (December 1), a season 22 days longer.

Measurable snow is rare here: only 1 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Town Bluff Dam, TX, 16.8 miles away, so there is no typical first-snow date to plan around.

ZIP 75956 is 17 miles from Town Bluff Dam, TX, which stands at 214 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 3 other ZIP codes share the station; its figures are presented in full for 75979 (Woodville). The 2023 USDA Plant Hardiness Zone Map lists ZIP 75956 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.