Frost dates for Alma Bacon Co Airport, GA
At Alma Bacon Co Airport, the median last spring frost (32°F) is Mar 11 and the median first fall frost is Nov 20, for a typical growing season of 256 days. For a 90% chance that the last frost has passed, wait until Mar 30. Nearby ZIP codes are in USDA hardiness zone 9a.
- Mar 11Last spring frost (median)50% chance of 32°F after this date
- Mar 30Safer planting date10% chance of 32°F after this date
- Nov 20First fall frost (median)50% chance of 32°F by this date
- 256 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 5 | Mar 24 | Apr 13 |
| 32°F | Feb 17 | Mar 11 | Mar 30 |
| 28°F | Jan 20 | Feb 21 | Mar 16 |
| 24°F | Jan 1 | Feb 1 | Mar 3 |
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 27 | Nov 9 | Nov 24 |
| 32°F | Nov 5 | Nov 20 | Dec 12 |
| 28°F | Nov 16 | Dec 7 | Jan 11 |
| 24°F | Nov 28 | Dec 31 | Feb 1 |
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 | 229 days | 256 days |
| 32°F | 230 days | 256 days | 287 days |
| 28°F | 257 days | 292 days | 330 days |
| 24°F | 290 days | 328 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 86% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 31510 | 9a | 20 to 25°F | 7 km |
| 31554 | 9a | 20 to 25°F | 12 km |
| 31551 | 9a | 20 to 25°F | 23 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 USW00013870, at 31.5358, -82.5067, elevation 59 m (193 ft).
- Data quality: Representative (10+ years), 21 years of freeze data.
- Average days per year at or below 32°F: 23.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Douglas (30 km)
- Surrency (35 km)
- Baxley 5nnw (36 km)
- Waycross 4 NE (37 km)
- Hazlehurst (40 km)
- Pridgen (43 km)
- Homerville 5 N (58 km)
- Jesup 8 S (61 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.