Frost Dates for 30252 — Mcdonough, Georgia

Half of springs at Mcdonough 5 ENE, GA see their last 32°F night by March 31; only one in ten is past it by March 8, and one in ten still has one after April 16. Planting tender crops after April 5 leaves a 30% risk of a frost on them, after April 9 20%, and after April 16 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 70% of the 127 Georgia stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 6 in half of years, as early as October 24 one year in ten, and holds off past November 24 one year in ten. A hard freeze of 28°F follows 11 days later, around November 17; in spring the one-in-ten date for 28°F is April 4, 12 days before the 32°F one. The freeze-free season lasts 220 days in a typical year, shorter than at 75% of the 127 Georgia stations; it reaches 245 days one year in ten and falls short of 198 one year in ten. On average 68 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 11 days longer, to about April 11, and return around October 27. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 71%.

July is the warmest month at Mcdonough 5 ENE, GA, averaging 92°F by day and 69°F at night; January is the coldest at 55°F and 32°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 46% of years.

Warmth for growing adds up to 5,155 growing degree days a year (base 50°F), fewer than at 62% of the 127 Georgia stations. 39% of them (2,034) have built up by the end of June, and July adds the most, 944. Precipitation totals 51.2 inches a year, most in March (5.4") and least in May (3.3"); May to September bring 40% of it.

The nearest other station, Jonesboro, GA, 16 miles west of Mcdonough and 222 feet higher, has a last frost 6 days earlier (March 25), a first frost 6 days later (November 12), a season 15 days longer.

The first measurable snow (0.1 inch or more) in Mcdonough usually arrives around January 17, and the last of the season around January 19. Those are the middle dates across the winters of 1991–2020 at Mcdonough 5 ENE, GA, 2.9 miles away: half of years saw snow earlier, half later. Snow fell in 60% of those winters. The last 32°F night of spring typically comes 71 days after the last snow.

ZIP 30252 is 3 miles from Mcdonough 5 ENE, GA, which stands at 708 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 30253 (Mcdonough). The 2023 USDA Plant Hardiness Zone Map lists ZIP 30252 in zone 8a, the band where the coldest night of the year averaged 10 to 15°F (-12.2 to -9.4°C) over 1991–2020; a zone describes winter lows, not frost dates.