Frost Dates for 31781 — Poulan, Georgia

Half of springs at Ashburn 3 ENE, GA see their last 32°F night by March 11; only one in ten is past it by February 19, and one in ten still has one after March 29. Planting tender crops after March 19 leaves a 30% risk of a frost on them, after March 23 20%, and after March 29 10%. The 18 days between the even-odds date and the one-in-ten date is narrower than at 41% of the 127 Georgia stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 20 in half of years, as early as November 1 one year in ten, and holds off past December 12 one year in ten. A hard freeze of 28°F follows 16 days later, around December 6; in spring the one-in-ten date for 28°F is March 17, 12 days before the 32°F one. The freeze-free season lasts 256 days in a typical year, longer than at 79% of the 127 Georgia stations; it reaches 284 days one year in ten and falls short of 228 one year in ten. On average 36 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 March 23, and return around November 7. Nights of 24°F, cold enough to damage hardier plants, come in 93% of winters and 16°F in 32%.

July is the warmest month at Ashburn 3 ENE, GA, averaging 91°F by day and 71°F at night; January is the coldest at 59°F and 36°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 73% of years.

Warmth for growing adds up to 6,071 growing degree days a year (base 50°F), more than at 69% of the 127 Georgia stations. 42% of them (2,519) have built up by the end of June, and July adds the most, 955.

The nearest other station, Tifton, GA, 19 miles east of Poulan, has the same 50% last-frost date, a first frost 1 day earlier (November 19), a season 2 days shorter.

Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Ashburn 3 ENE, GA, 15.5 miles away, so there is no typical first-snow date to plan around.

ZIP 31781 is 16 miles from Ashburn 3 ENE, GA, which stands at 435 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 31714 (Ashburn). The 2023 USDA Plant Hardiness Zone Map lists ZIP 31781 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.