Frost Dates for 71108 — Shreveport, Louisiana

Half of springs at Shreveport, LA 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 March 29. Planting tender crops after March 17 leaves a 30% risk of a frost on them, after March 21 20%, and after March 29 10%. The 20 days between the even-odds date and the one-in-ten date is narrower than at 72% of the 88 Louisiana stations behind this site's ZIP pages.

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 5 one year in ten. A hard freeze of 28°F follows 13 days later, around December 1; in spring the one-in-ten date for 28°F is March 16, 13 days before the 32°F one. The freeze-free season lasts 255 days in a typical year, shorter than at 70% of the 88 Louisiana stations; it reaches 282 days one year in ten and falls short of 229 one year in ten. On average 30 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 15 days longer, to about March 24, and return around November 8. Nights of 24°F, cold enough to damage hardier plants, come in 95% of winters and 16°F in 19%.

August is the warmest month at Shreveport, LA, averaging 95°F by day and 73°F at night; January is the coldest at 58°F and 37°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From April to October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 65% of years.

Warmth for growing adds up to 6,523 growing degree days a year (base 50°F), fewer than at 53% of the 88 Louisiana stations. 41% of them (2,682) have built up by the end of June, and August adds the most, 1,052. Precipitation totals 51.5 inches a year, most in April (5.2") and least in August (2.9"); May to September bring 37% of it.

The nearest other station, Shreveport WFO, LA, 4 miles west of Shreveport, has a last frost 3 days earlier (March 6), a first frost 1 day later (November 19), a season 2 days longer.

Measurable snow is rare here: only 14 of 30 winters from 1991 to 2020 recorded 0.1 inch or more at Shreveport, LA, 3.6 miles away, so there is no typical first-snow date to plan around.

ZIP 71108 is 4 miles from Shreveport, LA, which stands at 273 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 71108 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°C) over 1991–2020; a zone describes winter lows, not frost dates.