Frost Dates for 71403 — Anacoco, Louisiana

Half of springs at Toledo Bend Dam, TX see their last 32°F night by March 9; only one in ten is past it by February 16, and one in ten still has one after April 4. Planting tender crops after March 20 leaves a 30% risk of a frost on them, after March 27 20%, and after April 4 10%. The 26 days between the even-odds date and the one-in-ten date is wider than at 76% of the 88 Louisiana 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 18 in half of years, as early as November 2 one year in ten, and holds off past December 6 one year in ten. A hard freeze of 28°F follows 12 days later, around November 30; in spring the one-in-ten date for 28°F is March 17, 18 days before the 32°F one. The freeze-free season lasts 253 days in a typical year, shorter than at 73% of the 88 Louisiana stations; it reaches 281 days one year in ten and falls short of 222 one year in ten. On average 39 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 18 days longer, to about March 27, and return around November 6. Nights of 24°F, cold enough to damage hardier plants, come in 93% of winters and 16°F in 21%.

July is the warmest month at Toledo Bend Dam, TX, averaging 94°F by day and 71°F at night; January is the coldest at 59°F and 37°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From May to October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 63% of years and April still brings one in 14% of years.

Warmth for growing adds up to 6,290 growing degree days a year (base 50°F), fewer than at 67% of the 88 Louisiana stations. 41% of them (2,577) have built up by the end of June, and July adds the most, 1,012. Precipitation totals 55.7 inches a year, most in December (5.8") and least in August (3.4"); May to September bring 38% of it.

The nearest other station, Toledo Bend Lake, LA, 9 miles west of Anacoco, has a last frost 8 days earlier (March 1), a first frost 12 days later (November 30), a season 19 days longer.

Measurable snow is rare here: only 1 of 16 winters from 1991 to 2020 recorded 0.1 inch or more at Toledo Bend Lake, LA, 8.9 miles away, so there is no typical first-snow date to plan around.

ZIP 71403 is 9 miles from Toledo Bend Dam, TX, which stands at 190 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 71403 in zone 9a, the band where the coldest night of the year averaged 20 to 25°F (-6.7 to -3.9°C) over 1991–2020; a zone describes winter lows, not frost dates.