Frost dates for Atlanta Hartsfield Intl Airport, GA
At Atlanta Hartsfield Intl Airport, the median last spring frost (32°F) is Mar 15 and the median first fall frost is Nov 20, for a typical growing season of 252 days. For a 90% chance that the last frost has passed, wait until Apr 4. Nearby ZIP codes are in USDA hardiness zones 8a to 8b.
- Mar 15Last spring frost (median)50% chance of 32°F after this date
- Apr 4Safer planting date10% chance of 32°F after this date
- Nov 20First fall frost (median)50% chance of 32°F by this date
- 252 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Mar 10 | Mar 29 | Apr 16 |
| 32°F | Feb 23 | Mar 15 | Apr 4 |
| 28°F | Feb 1 | Feb 28 | Mar 20 |
| 24°F | Jan 12 | Feb 11 | Mar 12 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Oct 28 | Nov 7 | Nov 25 |
| 32°F | Nov 4 | Nov 20 | Dec 10 |
| 28°F | Nov 14 | Dec 5 | Jan 3 |
| 24°F | Nov 29 | Dec 25 | Jan 19 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 204 days | 226 days | 252 days |
| 32°F | 226 days | 252 days | 281 days |
| 28°F | 252 days | 281 days | 314 days |
| 24°F | 280 days | 313 days | 348 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 97% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 30337 | 8b | 15 to 20°F | 1 km |
| 30344 | 8a | 10 to 15°F | 6 km |
| 30354 | 8a | 10 to 15°F | 6 km |
| 30297 | 8b | 15 to 20°F | 7 km |
| 30296 | 8b | 15 to 20°F | 7 km |
| 30349 | 8a | 10 to 15°F | 8 km |
| 30315 | 8a | 10 to 15°F | 10 km |
| 30288 | 8a | 10 to 15°F | 11 km |
| 30291 | 8a | 10 to 15°F | 11 km |
| 30316 | 8a | 10 to 15°F | 14 km |
| 30213 | 8a | 10 to 15°F | 18 km |
| 30034 | 8a | 10 to 15°F | 19 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USW00013874, at 33.6300, -84.4417, elevation 308 m (1,010 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 36.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Jonesboro (14 km)
- Atlanta Fulton Co Airport (18 km)
- Mableton 1 N (28 km)
- Atlanta Peachtree Airport (30 km)
- Atlanta (32 km)
- McDonough 5 ENE (41 km)
- Experiment (43 km)
- Dallas 7 NE (50 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.