Frost Dates for 76367 — Iowa Park, Texas

Half of springs at Wichita Falls Municipal Airport, TX see their last 32°F night by March 26; only one in ten is past it by March 8, and one in ten still has one after April 14. Planting tender crops after April 2 leaves a 30% risk of a frost on them, after April 6 20%, and after April 14 10%. The 19 days between the even-odds date and the one-in-ten date is narrower than at 63% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 9 in half of years, as early as October 25 one year in ten, and holds off past November 24 one year in ten. A hard freeze of 28°F follows 9 days later, around November 18; in spring the one-in-ten date for 28°F is April 1, 13 days before the 32°F one. The freeze-free season lasts 228 days in a typical year, shorter than at 78% of the 339 Texas stations; it reaches 251 days one year in ten and falls short of 205 one year in ten. On average 59 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 April 7, and return around November 1. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 86%.

July is the warmest month at Wichita Falls Municipal Airport, TX, averaging 97°F by day and 72°F at night; January is the coldest at 55°F and 30°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 35% of years.

Warmth for growing adds up to 5,873 growing degree days a year (base 50°F), fewer than at 78% of the 351 Texas stations. 39% of them (2,292) have built up by the end of June, and July adds the most, 1,076. Precipitation totals 27.9 inches a year, most in May (3.8") and least in January (1.2"); May to September bring 53% of it.

The nearest other station, Archer City 2W, TX, 25 miles south of Iowa Park, has a last frost 1 day earlier (March 25), a first frost 1 day later (November 10), a season 3 days longer.

Measurable snow is rare here: only 5 of 19 winters from 1991 to 2020 recorded 0.1 inch or more at Dundee 6 NNW, TX, 17.3 miles away, so there is no typical first-snow date to plan around.

ZIP 76367 is 11 miles from Wichita Falls Municipal Airport, TX, which stands at 1,017 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 9 other ZIP codes share the station; its figures are presented in full for 76308 (Wichita Falls). The 2023 USDA Plant Hardiness Zone Map lists ZIP 76367 in zone 8a, the band where the coldest night of the year averaged 10 to 15°F (-12.2 to -9.4°C) over 1991–2020; a zone describes winter lows, not frost dates.