Frost Dates for 76066 — Millsap, Texas

Half of springs at Mineral Wells Airport, TX see their last 32°F night by March 24; only one in ten is past it by March 3, 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 21 days between the even-odds date and the one-in-ten date is wider than at 50% 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 10 in half of years, as early as October 27 one year in ten, and holds off past November 27 one year in ten. A hard freeze of 28°F follows 11 days later, around November 21; in spring the one-in-ten date for 28°F is April 2, 12 days before the 32°F one. The freeze-free season lasts 231 days in a typical year, shorter than at 74% of the 339 Texas stations; it reaches 258 days one year in ten and falls short of 206 one year in ten. On average 48 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 April 6, and return around November 1. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 67%.

July is the warmest month at Mineral Wells Airport, TX, averaging 96°F by day and 71°F at night; January is the coldest at 58°F and 33°F. A freezing night is all but certain in every month from November to February (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 89% of years and April still brings one in 34% of years.

Warmth for growing adds up to 6,163 growing degree days a year (base 50°F), fewer than at 62% of the 351 Texas stations. 41% of them (2,504) have built up by the end of June, and July adds the most, 1,046. Precipitation totals 31.9 inches a year, most in May (4.0") and least in January (1.6"); May to September bring 47% of it.

The nearest other station, Weatherford, TX, 14 miles east of Millsap, has a last frost 1 day later (March 25), a first frost 2 days earlier (November 8), a season 1 day shorter.

Measurable snow is rare here: only 2 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Brazos, TX, 8.9 miles away, so there is no typical first-snow date to plan around.

ZIP 76066 is 6 miles from Mineral Wells Airport, TX, which stands at 930 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 76067 (Mineral Wells). The 2023 USDA Plant Hardiness Zone Map lists ZIP 76066 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.