Frost Dates for 75220 — Dallas, Texas

Half of springs at Dallas Love Field, TX see their last 32°F night by March 2; only one in ten is past it by February 10, and one in ten still has one after March 19. Planting tender crops after March 9 leaves a 30% risk of a frost on them, after March 13 20%, and after March 19 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 86% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 29 in half of years, as early as November 10 one year in ten, and holds off past December 18 one year in ten. A hard freeze of 28°F follows 13 days later, around December 12; in spring the one-in-ten date for 28°F is March 9, 10 days before the 32°F one. The freeze-free season lasts 272 days in a typical year, longer than at 72% of the 339 Texas stations; it reaches 299 days one year in ten and falls short of 246 one year in ten. On average 23 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 12 days longer, to about March 14, and return around November 16. Nights of 24°F, cold enough to damage hardier plants, come in 89% of winters and 16°F in 18%.

July is the warmest month at Dallas Love Field, TX, averaging 97°F by day and 78°F at night; January is the coldest at 58°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 56% of years.

Warmth for growing adds up to 7,039 growing degree days a year (base 50°F), more than at 68% of the 351 Texas stations. 41% of them (2,856) have built up by the end of June, and July adds the most, 1,156. Precipitation totals 38.4 inches a year, most in October (4.8") and least in July (1.7"); May to September bring 40% of it.

The nearest other station, Dallas Fort Worth Airport, TX, 9 miles west of Dallas, has a last frost 6 days later (March 8), a first frost 5 days earlier (November 24), a season 10 days shorter.

Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Richardson, TX, 11.3 miles away, so there is no typical first-snow date to plan around.

ZIP 75220 is 1 mile from Dallas Love Field, TX, which stands at 440 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 30 other ZIP codes share the station; its figures are presented in full for 75228 (Dallas). The 2023 USDA Plant Hardiness Zone Map lists ZIP 75220 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.