Frost Dates for 70592 — Youngsville, Louisiana

Half of springs at Lafayette Regional Airport, LA see their last 32°F night by February 13; only one in ten is past it by January 13, and one in ten still has one after March 10. Planting tender crops after February 26 leaves a 30% risk of a frost on them, after March 3 20%, and after March 10 10%. The 25 days between the even-odds date and the one-in-ten date is wider than at 69% 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 December 4 in half of years, as early as November 13 one year in ten, and holds off past January 5 one year in ten. A hard freeze of 28°F follows 26 days later, around December 30; in spring the one-in-ten date for 28°F is February 28, 10 days before the 32°F one. The freeze-free season lasts 299 days in a typical year, longer than at 78% of the 88 Louisiana stations; it reaches 335 days one year in ten and falls short of 263 one year in ten. On average 11 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 3, and return around November 20. A 24°F night is unusual: 45% of winters had one.

August is the warmest month at Lafayette Regional Airport, LA, averaging 92°F by day and 75°F at night; January is the coldest at 62°F and 44°F. From April to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 55% of years and March still brings one in 24% of years.

Warmth for growing adds up to 7,303 growing degree days a year (base 50°F), more than at 86% of the 88 Louisiana stations. 43% of them (3,150) have built up by the end of June, and August adds the most, 1,038. Precipitation totals 62.9 inches a year, most in June (7.1") and least in March (3.7"); May to September bring 48% of it.

The nearest other station, Lafayette 13 SE, LA, 8 miles east of Youngsville, has a last frost 6 days later (February 19), a first frost 3 days earlier (December 1), a season 10 days shorter.

Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at St Martinville 3 SW, LA, 7.9 miles away, so there is no typical first-snow date to plan around.

ZIP 70592 is 7 miles from Lafayette Regional Airport, LA, which stands at 38 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 4 other ZIP codes share the station; its figures are presented in full for 70508 (Lafayette). The 2023 USDA Plant Hardiness Zone Map lists ZIP 70592 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.