Frost Dates for 75224 — Dallas, Texas

Half of springs at Dallas Redbird Airport, TX see their last 32°F night by March 6; only one in ten is past it by February 15, 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 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 25 in half of years, as early as November 6 one year in ten, and holds off past December 14 one year in ten. A hard freeze of 28°F follows 14 days later, around December 9; in spring the one-in-ten date for 28°F is March 12, 14 days before the 32°F one. The freeze-free season lasts 265 days in a typical year, longer than at 69% of the 339 Texas stations; it reaches 291 days one year in ten and falls short of 239 one year in ten. On average 27 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 19, and return around November 12. Nights of 24°F, cold enough to damage hardier plants, come in 91% of winters and 16°F in 27%.

August is the warmest month at Dallas Redbird Airport, TX, averaging 96°F by day and 75°F at night; January is the coldest at 57°F and 38°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 66% of years.

Warmth for growing adds up to 6,686 growing degree days a year (base 50°F), more than at 61% of the 351 Texas stations. 40% of them (2,687) have built up by the end of June, and August adds the most, 1,106. Precipitation totals 37.8 inches a year, most in October (4.5") and least in August (1.8"); May to September bring 39% of it.

The nearest other station, Joe Pool Lake, TX, 9 miles southwest of Dallas, has a last frost 14 days later (March 20), a first frost 12 days earlier (November 13), a season 29 days shorter.

Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Joe Pool Lake, TX, 9.4 miles away, so there is no typical first-snow date to plan around.

ZIP 75224 is 3 miles from Dallas Redbird Airport, TX, which stands at 658 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 14 other ZIP codes share the station; its figures are presented in full for 75217 (Dallas). The 2023 USDA Plant Hardiness Zone Map lists ZIP 75224 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.