Frost Dates for 75603 — Longview, Texas

Half of springs at Longview E Tx Regional Airport, TX see their last 32°F night by March 8; only one in ten is past it by February 19, and one in ten still has one after March 31. Planting tender crops after March 17 leaves a 30% risk of a frost on them, after March 23 20%, and after March 31 10%. The 23 days between the even-odds date and the one-in-ten date is wider than at 72% 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 November 2 one year in ten, and holds off past December 3 one year in ten. A hard freeze of 28°F follows 13 days later, around November 30; in spring the one-in-ten date for 28°F is March 15, 16 days before the 32°F one. The freeze-free season lasts 251 days in a typical year, longer than at 53% of the 339 Texas stations; it reaches 279 days one year in ten and falls short of 223 one year in ten. On average 35 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 17 days longer, to about March 25, and return around November 6. Nights of 24°F, cold enough to damage hardier plants, come in 94% of winters and 16°F in 22%.

July is the warmest month at Longview E Tx Regional Airport, TX, averaging 94°F by day and 74°F at night; January is the coldest at 58°F and 37°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 6,422 growing degree days a year (base 50°F), more than at 51% of the 351 Texas stations. 41% of them (2,627) have built up by the end of June, and July adds the most, 1,052. Precipitation totals 45.4 inches a year, most in May (4.8") and least in July (2.5"); May to September bring 38% of it.

The nearest other station, Longview WSMO, TX, 4 miles southeast of Longview, has a last frost 3 days later (March 11), the same first-frost date, a season 1 day shorter.

Measurable snow is rare here: only 6 of 29 winters from 1991 to 2020 recorded 0.1 inch or more at Longview WSMO, TX, 4.3 miles away, so there is no typical first-snow date to plan around.

ZIP 75603 is 1 mile from Longview E Tx Regional Airport, TX, which stands at 365 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 75662 (Kilgore). The 2023 USDA Plant Hardiness Zone Map lists ZIP 75603 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.