Frost Dates for 76247 — Justin, Texas

Half of springs at Fort Worth Alliance Airport, TX see their last 32°F night by March 12; only one in ten is past it by February 21, and one in ten still has one after April 3. Planting tender crops after March 21 leaves a 30% risk of a frost on them, after March 27 20%, and after April 3 10%. The 22 days between the even-odds date and the one-in-ten date is wider than at 63% 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 17 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 December 1; in spring the one-in-ten date for 28°F is March 19, 15 days before the 32°F one. The freeze-free season lasts 249 days in a typical year, longer than at 50% of the 339 Texas stations; it reaches 276 days one year in ten and falls short of 222 one year in ten. On average 45 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 15 days longer, to about March 27, and return around November 6. Nights of 24°F, cold enough to damage hardier plants, come in 98% of winters and 16°F in 41%.

July is the warmest month at Fort Worth Alliance Airport, TX, averaging 97°F by day and 76°F at night; January is the coldest at 57°F and 36°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 75% of years and April still brings one in 14% of years.

Warmth for growing adds up to 6,710 growing degree days a year (base 50°F), more than at 62% of the 351 Texas stations. 40% of them (2,702) have built up by the end of June, and July adds the most, 1,136. Precipitation totals 36.7 inches a year, most in May (4.1") and least in January (1.9"); May to September bring 45% of it.

The nearest other station, Denton Municipal Airport, TX, 10 miles northeast of Justin, has a last frost 12 days later (March 24), a first frost 10 days earlier (November 7), a season 22 days shorter.

Measurable snow is rare here: only 3 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Roanoke, TX, 7 miles away, so there is no typical first-snow date to plan around.

ZIP 76247 is 8 miles from Fort Worth Alliance Airport, TX, which stands at 685 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 6 other ZIP codes share the station; its figures are presented in full for 76262 (Roanoke). The 2023 USDA Plant Hardiness Zone Map lists ZIP 76247 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.