Frost Dates for 39426 — Carriere, Mississippi

Half of springs at Picayune, MS see their last 32°F night by March 9; only one in ten is past it by February 17, and one in ten still has one after March 31. Planting tender crops after March 19 leaves a 30% risk of a frost on them, after March 25 20%, and after March 31 10%. The 22 days between the even-odds date and the one-in-ten date is wider than at 85% of the 96 Mississippi 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 3 one year in ten, and holds off past December 11 one year in ten. A hard freeze of 28°F follows 15 days later, around December 3; in spring the one-in-ten date for 28°F is March 16, 15 days before the 32°F one. The freeze-free season lasts 255 days in a typical year, longer than at 82% of the 96 Mississippi stations; it reaches 287 days one year in ten and falls short of 226 one year in ten. On average 31 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 17 days longer, to about March 26, and return around November 7. Nights of 24°F, cold enough to damage hardier plants, come in 90% of winters and 16°F in 25%.

July is the warmest month at Picayune, MS, averaging 92°F by day and 71°F at night; January is the coldest at 62°F and 38°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 6,325 growing degree days a year (base 50°F), more than at 81% of the 96 Mississippi stations. 41% of them (2,616) have built up by the end of June, and July adds the most, 961. Precipitation totals 66.8 inches a year, most in June (6.6") and least in November (4.3"); May to September bring 44% of it.

The nearest other station, Bogalusa, LA, 15 miles northwest of Carriere, has a last frost 7 days earlier (March 2), a first frost 5 days later (November 23), a season 10 days longer.

Measurable snow is rare here: only 0 of 18 winters from 1991 to 2020 recorded 0.1 inch or more at Picayune, MS, 7.8 miles away, so there is no typical first-snow date to plan around.

ZIP 39426 is 8 miles from Picayune, MS, which stands at 64 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 39466 (Picayune). The 2023 USDA Plant Hardiness Zone Map lists ZIP 39426 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.