Frost Dates for 31566 — Waynesville, Georgia

Half of springs at Nahunta 6NE, GA see their last 32°F night by March 25; only one in ten is past it by March 2, and one in ten still has one after April 15. Planting tender crops after April 2 leaves a 30% risk of a frost on them, after April 8 20%, and after April 15 10%. The 21 days between the even-odds date and the one-in-ten date is wider than at 83% of the 127 Georgia 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 15 in half of years, as early as October 31 one year in ten, and holds off past December 2 one year in ten. A hard freeze of 28°F follows 12 days later, around November 27; in spring the one-in-ten date for 28°F is March 31, 15 days before the 32°F one. The freeze-free season lasts 236 days in a typical year, longer than at 51% of the 127 Georgia stations; it reaches 267 days one year in ten and falls short of 210 one year in ten. On average 40 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 12 days longer, to about April 6, and return around November 5. Nights of 24°F, cold enough to damage hardier plants, come in 97% of winters and 16°F in 32%.

July is the warmest month at Nahunta 6NE, GA, averaging 91°F by day and 70°F at night; January is the coldest at 63°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 September the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 88% of years and April still brings one in 34% of years.

Warmth for growing adds up to 6,026 growing degree days a year (base 50°F), more than at 68% of the 127 Georgia stations. 41% of them (2,442) have built up by the end of June, and July adds the most, 945.

The nearest other station, Woodbine, GA, 15 miles southeast of Waynesville, has a last frost 11 days earlier (March 14), a first frost 10 days later (November 25), a season 21 days longer.

Measurable snow is rare here: only 1 of 27 winters from 1991 to 2020 recorded 0.1 inch or more at Nahunta 6NE, GA, 10.4 miles away, so there is no typical first-snow date to plan around.

ZIP 31566 is 10 miles from Nahunta 6NE, GA, which stands at 68 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 3 other ZIP codes share the station; its figures are presented in full for 31543 (Hortense). The 2023 USDA Plant Hardiness Zone Map lists ZIP 31566 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.