Frost Dates for 75038 — Irving, Texas

Half of springs at Dallas Fort Worth Airport, TX see their last 32°F night by March 8; only one in ten is past it by February 17, and one in ten still has one after March 26. Planting tender crops after March 15 leaves a 30% risk of a frost on them, after March 19 20%, and after March 26 10%. The 18 days between the even-odds date and the one-in-ten date is narrower than at 75% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 24 in half of years, as early as November 6 one year in ten, and holds off past December 12 one year in ten. A hard freeze of 28°F follows 13 days later, around December 7; in spring the one-in-ten date for 28°F is March 14, 12 days before the 32°F one. The freeze-free season lasts 262 days in a typical year, longer than at 67% of the 339 Texas stations; it reaches 288 days one year in ten and falls short of 236 one year in ten. On average 29 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 21, and return around November 13. Nights of 24°F, cold enough to damage hardier plants, come in 95% of winters and 16°F in 30%.

August is the warmest month at Dallas Fort Worth Airport, TX, averaging 96°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 April to October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 69% of years.

Warmth for growing adds up to 6,602 growing degree days a year (base 50°F), more than at 59% of the 351 Texas stations. 40% of them (2,650) have built up by the end of June, and August adds the most, 1,108. Precipitation totals 37.0 inches a year, most in May (4.8") and least in July (2.1"); May to September bring 42% of it.

The nearest other station, Grapevine Dam, TX, 7 miles northwest of Irving, has a last frost 6 days later (March 14), a first frost 7 days earlier (November 17), a season 13 days shorter.

Measurable snow is rare here: only 1 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Grapevine Dam, TX, 6.8 miles away, so there is no typical first-snow date to plan around.

ZIP 75038 is 3 miles from Dallas Fort Worth Airport, TX, which stands at 560 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 75061 (Irving). The 2023 USDA Plant Hardiness Zone Map lists ZIP 75038 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.