Frost Dates for 76458 — Jacksboro, Texas

Half of springs at Jacksboro, TX see their last 32°F night by March 28; only one in ten is past it by March 9, and one in ten still has one after April 18. Planting tender crops after April 4 leaves a 30% risk of a frost on them, after April 9 20%, and after April 18 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 7 in half of years, as early as October 23 one year in ten, and holds off past November 23 one year in ten. A hard freeze of 28°F follows 9 days later, around November 16; in spring the one-in-ten date for 28°F is April 3, 15 days before the 32°F one. The freeze-free season lasts 225 days in a typical year, shorter than at 81% of the 339 Texas stations; it reaches 250 days one year in ten and falls short of 200 one year in ten. On average 56 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 14 days longer, to about April 11, and return around October 29. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 88%.

July is the warmest month at Jacksboro, TX, averaging 96°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 40% of years.

Warmth for growing adds up to 5,808 growing degree days a year (base 50°F), fewer than at 80% of the 351 Texas stations. 39% of them (2,276) have built up by the end of June, and July adds the most, 1,041. Precipitation totals 32.8 inches a year, most in May (4.3") and least in January (1.5"); May to September bring 47% of it.

The nearest other station, Bridgeport, TX, 22 miles east of Jacksboro and 312 feet lower, has a last frost 1 day later (March 29), the same first-frost date, a season 3 days shorter.

Measurable snow is rare here: only 4 of 16 winters from 1991 to 2020 recorded 0.1 inch or more at Newport 1SW, TX, 19.3 miles away, so there is no typical first-snow date to plan around.

ZIP 76458 is under a mile from Jacksboro, TX, which stands at 1,081 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 76458 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.