Frost Dates for 30733 — Plainville, Georgia

Half of springs at Rome R B Russell Airport, GA see their last 32°F night by March 29; only one in ten is past it by March 12, and one in ten still has one after April 15. Planting tender crops after April 5 leaves a 30% risk of a frost on them, after April 9 20%, and after April 15 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 3 in half of years, as early as October 22 one year in ten, and holds off past November 18 one year in ten. A hard freeze of 28°F follows 11 days later, around November 14; in spring the one-in-ten date for 28°F is April 3, 12 days before the 32°F one. The freeze-free season lasts 219 days in a typical year, shorter than at 76% of the 127 Georgia stations; it reaches 241 days one year in ten and falls short of 197 one year in ten. On average 64 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 11, and return around October 25. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 80%.

July is the warmest month at Rome R B Russell Airport, GA, averaging 91°F by day and 69°F at night; January is the coldest at 53°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 42% of years.

Warmth for growing adds up to 5,145 growing degree days a year (base 50°F), fewer than at 63% of the 127 Georgia stations. 39% of them (2,022) have built up by the end of June, and July adds the most, 938. Precipitation totals 50.8 inches a year, most in January (5.0") and least in September (3.4"); May to September bring 36% of it.

The nearest other station, Rome, GA, 14 miles southwest of Plainville, has a last frost 3 days later (April 1), the same first-frost date, a season 2 days shorter.

Measurable snow is rare here: only 7 of 24 winters from 1991 to 2020 recorded 0.1 inch or more at Adairsville 5 SE, GA, 12.3 miles away, so there is no typical first-snow date to plan around.

ZIP 30733 is 8 miles from Rome R B Russell Airport, GA, which stands at 639 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 30701 (Calhoun). The 2023 USDA Plant Hardiness Zone Map lists ZIP 30733 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.