Frost Dates for 30439 — Metter, Georgia

Half of springs at Metter, GA see their last 32°F night by March 2; only one in ten is past it by February 2, and one in ten still has one after March 25. Planting tender crops after March 11 leaves a 30% risk of a frost on them, after March 17 20%, and after March 25 10%. The 23 days between the even-odds date and the one-in-ten date is wider than at 92% 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 27 in half of years, as early as November 7 one year in ten, and holds off past December 28 one year in ten. A hard freeze of 28°F follows 19 days later, around December 16; in spring the one-in-ten date for 28°F is March 12, 13 days before the 32°F one. The freeze-free season lasts 269 days in a typical year, longer than at 93% of the 127 Georgia stations; it reaches 306 days one year in ten and falls short of 240 one year in ten. On average 24 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 19, and return around November 13. Nights of 24°F, cold enough to damage hardier plants, come in 78% of winters and 16°F in 10%.

July is the warmest month at Metter, GA, averaging 92°F by day and 73°F at night; January is the coldest at 60°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 82% of years and March still brings one in 52% of years.

Warmth for growing adds up to 6,467 growing degree days a year (base 50°F), more than at 87% of the 127 Georgia stations. 42% of them (2,710) have built up by the end of June, and July adds the most, 1,006. Precipitation totals 47.2 inches a year, most in July (5.6") and least in October (2.7"); May to September bring 47% of it.

The nearest other station, Rocky Ford 4SE, GA, 22 miles northeast of Metter, has a last frost 12 days later (March 14), a first frost 12 days earlier (November 15), a season 21 days shorter.

Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Brooklet 1 W, GA, 22.4 miles away, so there is no typical first-snow date to plan around.

ZIP 30439 is 1 mile from Metter, GA, which stands at 120 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 4 other ZIP codes share the station; its figures are presented in full for 30474 (Vidalia). The 2023 USDA Plant Hardiness Zone Map lists ZIP 30439 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.