Frost dates for Atlanta
The typical last spring frost in Atlanta is Mar 15, and the typical first fall frost is Nov 20. These dates come from Atlanta Hartsfield Jackson International Airport, and the growing season between them is 252 days.
NCEI U.S. Climate Normals 1991-2020, annual/seasonal (c20230404), USW00013874
This season's measured frost
No freeze has been recorded yet this fall at Atlanta Hartsfield Jackson International Airport; the lowest reading since July 1 is 55F on Sep 27, against a typical first frost date of Nov 20.
In 2026, the last spring freeze at Atlanta Hartsfield Jackson International Airport was on Mar 17 with a low of 29F, 2 days later than the typical date of Mar 15.
Readings come from official daily lows in the daily climate report of the National Weather Service, via the Iowa Environmental Mesonet.
Early, typical and late years for Atlanta
| Year type | Last spring frost | First fall frost |
|---|---|---|
| Early year (1 in 10) | Feb 23 | Nov 4 |
| Typical year | Mar 15 | Nov 20 |
| Late year (1 in 10) | Apr 4 | Dec 10 |
For spring, an early year means 1 year in 10 has a last freeze before the early date, and a late year means 1 year in 10 has a last freeze after the late date. For fall, an early year means 1 year in 10 has a first freeze by the early date, and a late year means it holds off past the late date.
The growing season in a typical year is 252 days, with the shortest at 226 days and the longest at 281 days in 1 year in 10.
Frost and freeze thresholds
| Last spring frost | First fall frost | |
|---|---|---|
| Light frost (36F) | Mar 29 | Nov 7 |
| Freeze (32F) | Mar 15 | Nov 20 |
| Hard freeze (28F) | Feb 28 | Dec 5 |
Clear, calm nights can see frost on plants at a low of 36F. A low of 32F is a freeze, and most tender plants are killed at 28F, a hard freeze.
More weather for Atlanta
A typical date is the median: half of years have an earlier last spring frost, half a later one. An early year means 1 year in 10, and a late year means 1 year in 10. Dates come from the U.S. Climate Normals for 1991-2020, published by NOAA's National Centers for Environmental Information, using a daily low of 32F or below as a freeze.
The daily climate report is issued by the local National Weather Service forecast office and delivered to this page by the Iowa Environmental Mesonet of Iowa State University. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.