Frost Dates for 39845 — Donalsonville, Georgia

Half of springs at Donalsonville, GA see their last 32°F night by March 6; only one in ten is past it by February 10, and one in ten still has one after March 25. Planting tender crops after March 14 leaves a 30% risk of a frost on them, after March 19 20%, and after March 25 10%. The 19 days between the even-odds date and the one-in-ten date is wider than at 60% of the 127 Georgia stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 23 in half of years, as early as November 6 one year in ten, and holds off past December 22 one year in ten. A hard freeze of 28°F follows 19 days later, around December 12; in spring the one-in-ten date for 28°F is March 15, 10 days before the 32°F one. The freeze-free season lasts 264 days in a typical year, longer than at 88% of the 127 Georgia stations; it reaches 298 days one year in ten and falls short of 235 one year in ten. On average 20 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 14 days longer, to about March 20, and return around November 11. Nights of 24°F, cold enough to damage hardier plants, come in 85% of winters and 16°F in 15%.

July is the warmest month at Donalsonville, GA, averaging 91°F by day and 73°F at night; January is the coldest at 59°F and 39°F. A freezing night is all but certain in January (a 90% chance or more). From April to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 86% of years and March still brings one in 62% of years.

Warmth for growing adds up to 6,560 growing degree days a year (base 50°F), more than at 89% of the 127 Georgia stations. 42% of them (2,753) have built up by the end of June, and July adds the most, 992.

The nearest other station, Bainbridge International Paper, GA, 21 miles southeast of Donalsonville, has a last frost 8 days later (March 14), a first frost 6 days earlier (November 17), a season 14 days shorter.

Measurable snow is rare here: only 0 of 19 winters from 1991 to 2020 recorded 0.1 inch or more at Bainbridge International Paper, GA, 21.2 miles away, so there is no typical first-snow date to plan around.

ZIP 39845 is 2 miles from Donalsonville, GA, which stands at 150 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 39845 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.