Frost Dates for 30673 — Washington, Georgia

Half of springs at Washington 2 ESE, GA see their last 32°F night by March 22; only one in ten is past it by February 28, and one in ten still has one after April 6. Planting tender crops after March 29 leaves a 30% risk of a frost on them, after April 1 20%, and after April 6 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 83% 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 31 one year in ten, and holds off past December 4 one year in ten. A hard freeze of 28°F follows 18 days later, around December 1; in spring the one-in-ten date for 28°F is March 27, 10 days before the 32°F one. The freeze-free season lasts 237 days in a typical year, longer than at 53% of the 127 Georgia stations; it reaches 265 days one year in ten and falls short of 216 one year in ten. On average 51 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 4, and return around November 2. Nights of 24°F, cold enough to damage hardier plants, come in 98% of winters and 16°F in 47%.

July is the warmest month at Washington 2 ESE, GA, averaging 90°F by day and 70°F at night; January is the coldest at 54°F and 34°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 86% of years and April still brings one in 21% of years.

Warmth for growing adds up to 5,184 growing degree days a year (base 50°F), fewer than at 61% of the 127 Georgia stations. 40% of them (2,055) have built up by the end of June, and July adds the most, 919. Precipitation totals 44.4 inches a year, most in August (4.4") and least in October (2.9"); May to September bring 42% of it.

The nearest other station, Siloam 3N, GA, 23 miles southwest of Washington, has a last frost 5 days later (March 27), a first frost 5 days earlier (November 8), a season 11 days shorter.

Measurable snow is rare here: only 7 of 28 winters from 1991 to 2020 recorded 0.1 inch or more at Washington 2 ESE, GA, 1.2 miles away, so there is no typical first-snow date to plan around.

ZIP 30673 is 1 mile from Washington 2 ESE, GA, which stands at 620 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 30673 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.