Frost Dates for 75436 — Detroit, Texas

Half of springs at Clarksville 2NE, TX see their last 32°F night by March 20; only one in ten is past it by February 28, and one in ten still has one after April 11. Planting tender crops after March 31 leaves a 30% risk of a frost on them, after April 4 20%, and after April 11 10%. The 22 days between the even-odds date and the one-in-ten date is wider than at 63% 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 28 one year in ten, and holds off past November 29 one year in ten. A hard freeze of 28°F follows 13 days later, around November 23; in spring the one-in-ten date for 28°F is March 28, 14 days before the 32°F one. The freeze-free season lasts 233 days in a typical year, shorter than at 72% of the 339 Texas stations; it reaches 261 days one year in ten and falls short of 208 one year in ten. On average 57 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 16 days longer, to about April 5, and return around November 1. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 65%.

July is the warmest month at Clarksville 2NE, TX, averaging 92°F by day and 72°F at night; January is the coldest at 54°F and 32°F. A freezing night is all but certain in every month from December 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 84% of years and April still brings one in 28% of years.

Warmth for growing adds up to 5,547 growing degree days a year (base 50°F), fewer than at 88% of the 351 Texas stations. 38% of them (2,134) have built up by the end of June, and July adds the most, 994. Precipitation totals 49.5 inches a year, most in May (5.9") and least in July (2.8"); May to September bring 40% of it.

The nearest other station, Paris, TX, 17 miles west of Detroit, has a last frost 6 days earlier (March 14), a first frost 6 days later (November 16), a season 14 days longer.

Measurable snow is rare here: only 9 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Clarksville 2NE, TX, 11.5 miles away, so there is no typical first-snow date to plan around.

ZIP 75436 is 12 miles from Clarksville 2NE, TX, which stands at 435 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 75426 (Clarksville). The 2023 USDA Plant Hardiness Zone Map lists ZIP 75436 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.