Frost Dates for 79226 — Clarendon, Texas

Half of springs at Clarendon, TX see their last 32°F night by April 14; only one in ten is past it by March 29, and one in ten still has one after April 28. Planting tender crops after April 20 leaves a 30% risk of a frost on them, after April 24 20%, and after April 28 10%. The 14 days between the even-odds date and the one-in-ten date is narrower than at 96% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 26 in half of years, as early as October 15 one year in ten, and holds off past November 7 one year in ten. A hard freeze of 28°F follows 8 days later, around November 3; in spring the one-in-ten date for 28°F is April 21, 7 days before the 32°F one. The freeze-free season lasts 194 days in a typical year, shorter than at 96% of the 339 Texas stations; it reaches 214 days one year in ten and falls short of 175 one year in ten. On average 105 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 10 days longer, to about April 24, and return around October 17. Severe cold of 16°F or below comes every winter, usually between December 2 and February 24.

July is the warmest month at Clarendon, TX, averaging 95°F by day and 67°F at night; January is the coldest at 53°F and 24°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 86% of years.

Warmth for growing adds up to 4,732 growing degree days a year (base 50°F), fewer than at 93% of the 351 Texas stations. 38% of them (1,784) have built up by the end of June, and July adds the most, 955. Precipitation totals 22.7 inches a year, most in May (3.5") and least in February (0.7"); May to September bring 61% of it.

The nearest other station, Memphis, TX, 27 miles southeast of Clarendon and 610 feet lower, has a last frost 13 days earlier (April 1), a first frost 8 days later (November 3), a season 21 days longer.

The first measurable snow (0.1 inch or more) in Clarendon usually arrives around January 1, and the last of the season around March 2. Those are the middle dates across the winters of 1991–2020 at Clarendon, TX, 2.9 miles away: half of years saw snow earlier, half later. Snow fell in 55% of those winters. The last 32°F night of spring typically comes 43 days after the last snow.

ZIP 79226 is 3 miles from Clarendon, TX, which stands at 2,700 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 79226 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°C) over 1991–2020; a zone describes winter lows, not frost dates.