Frost Dates for 76133 — Fort Worth, Texas

Half of springs at Benbrook Dam, TX see their last 32°F night by March 14; only one in ten is past it by February 25, and one in ten still has one after April 3. Planting tender crops after March 23 leaves a 30% risk of a frost on them, after March 29 20%, and after April 3 10%. The 20 days between the even-odds date and the one-in-ten date is narrower than at 51% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 16 in half of years, as early as October 31 one year in ten, and holds off past December 5 one year in ten. A hard freeze of 28°F follows 14 days later, around November 30; in spring the one-in-ten date for 28°F is March 21, 13 days before the 32°F one. The freeze-free season lasts 245 days in a typical year, shorter than at 53% of the 339 Texas stations; it reaches 271 days one year in ten and falls short of 220 one year in ten. On average 43 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 30, and return around November 6. Nights of 24°F, cold enough to damage hardier plants, come in 99% of winters and 16°F in 55%.

July is the warmest month at Benbrook Dam, TX, averaging 97°F by day and 73°F at night; January is the coldest at 59°F and 33°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 81% of years and April still brings one in 15% of years.

Warmth for growing adds up to 6,430 growing degree days a year (base 50°F), more than at 51% of the 351 Texas stations. 40% of them (2,557) have built up by the end of June, and July adds the most, 1,088. Precipitation totals 36.2 inches a year, most in May (4.5") and least in July (1.9"); May to September bring 44% of it.

The nearest other station, Fort Worth NAS, TX, 9 miles northwest of Fort Worth and 182 feet lower, has a last frost 11 days earlier (March 3), a first frost 11 days later (November 27), a season 25 days longer.

Measurable snow is rare here: only 1 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Benbrook Dam, TX, 3.9 miles away, so there is no typical first-snow date to plan around.

ZIP 76133 is 4 miles from Benbrook Dam, TX, which stands at 790 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 7 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 76133 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°C) over 1991–2020; a zone describes winter lows, not frost dates.