Frost Dates for 76374 — Olney, Texas

Half of springs at Olney, TX see their last 32°F night by March 31; only one in ten is past it by March 10, and one in ten still has one after April 18. Planting tender crops after April 6 leaves a 30% risk of a frost on them, after April 11 20%, and after April 18 10%. The 18 days between the even-odds date and the one-in-ten date is narrower than at 75% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 8 in half of years, as early as October 24 one year in ten, and holds off past November 23 one year in ten. A hard freeze of 28°F follows 10 days later, around November 18; in spring the one-in-ten date for 28°F is April 5, 13 days before the 32°F one. The freeze-free season lasts 222 days in a typical year, shorter than at 84% of the 339 Texas stations; it reaches 245 days one year in ten and falls short of 199 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 11 days longer, to about April 11, and return around October 30. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 85%.

July is the warmest month at Olney, 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 45% of years.

Warmth for growing adds up to 5,918 growing degree days a year (base 50°F), fewer than at 76% of the 351 Texas stations. 39% of them (2,309) have built up by the end of June, and July adds the most, 1,071. Precipitation totals 29.2 inches a year, most in May (3.9") and least in January (1.4"); May to September bring 49% of it.

The nearest other station, Archer City 2W, TX, 17 miles north of Olney and 194 feet lower, has a last frost 6 days earlier (March 25), a first frost 2 days later (November 10), a season 9 days longer.

Measurable snow is rare here: only 4 of 28 winters from 1991 to 2020 recorded 0.1 inch or more at Woodson, TX, 29.7 miles away, so there is no typical first-snow date to plan around.

ZIP 76374 is 1 mile from Olney, TX, which stands at 1,195 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 76374 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.