Frost Dates for 39866 — Morgan, Georgia

Half of springs at Cuthbert, GA see their last 32°F night by March 21; only one in ten is past it by February 28, and one in ten still has one after April 7. Planting tender crops after March 29 leaves a 30% risk of a frost on them, after April 2 20%, and after April 7 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 56% of the 127 Georgia stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 13 in half of years, as early as October 30 one year in ten, and holds off past December 3 one year in ten. A hard freeze of 28°F follows 14 days later, around November 27; in spring the one-in-ten date for 28°F is March 28, 10 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 262 days one year in ten and falls short of 212 one year in ten. On average 37 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 13 days longer, to about April 3, and return around November 3. Nights of 24°F, cold enough to damage hardier plants, come in 99% of winters and 16°F in 61%.

July is the warmest month at Cuthbert, GA, averaging 92°F by day and 70°F at night; January is the coldest at 60°F and 35°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 22% of years.

Warmth for growing adds up to 5,862 growing degree days a year (base 50°F), more than at 63% of the 127 Georgia stations. 41% of them (2,381) have built up by the end of June, and July adds the most, 950. Precipitation totals 55.6 inches a year, most in July (7.3") and least in May (2.3"); May to September bring 43% of it.

The nearest other station, Albany SW Ga Regional Airport, GA, 25 miles east of Morgan and 271 feet lower, has a last frost 13 days earlier (March 8), a first frost 8 days later (November 21), a season 24 days longer.

Measurable snow is rare here: only 0 of 18 winters from 1991 to 2020 recorded 0.1 inch or more at Morgan 5 NW, GA, 4.2 miles away, so there is no typical first-snow date to plan around.

ZIP 39866 is 18 miles from Cuthbert, GA, which stands at 461 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 39840 (Cuthbert). The 2023 USDA Plant Hardiness Zone Map lists ZIP 39866 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.