Frost dates for Chatom, AL
At Chatom, the median last spring frost (32°F) is Mar 26 and the median first fall frost is Nov 8, for a typical growing season of 228 days. For a 90% chance that the last frost has passed, wait until Apr 11. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 26Last spring frost (median)50% chance of 32°F after this date
- Apr 11Safer planting date10% chance of 32°F after this date
- Nov 8First fall frost (median)50% chance of 32°F by this date
- 228 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 21 | Apr 8 | Apr 24 |
| 32°F | Mar 3 | Mar 26 | Apr 11 |
| 28°F | Feb 17 | Mar 10 | Mar 31 |
| 24°F | Jan 27 | Feb 24 | Mar 17 |
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 15 | Oct 29 | Nov 12 |
| 32°F | Oct 25 | Nov 8 | Nov 27 |
| 28°F | Nov 2 | Nov 20 | Dec 12 |
| 24°F | Nov 11 | Dec 4 | Jan 6 |
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 | 184 days | 204 days | 227 days |
| 32°F | 203 days | 228 days | 254 days |
| 28°F | 227 days | 255 days | 287 days |
| 24°F | 253 days | 287 days | 321 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 36518 | 8b | 15 to 20°F | 2 km |
| 36583 | 8b | 15 to 20°F | 13 km |
| 36585 | 8b | 15 to 20°F | 17 km |
| 36558 | 8b | 15 to 20°F | 18 km |
| 36539 | 8b | 15 to 20°F | 19 km |
| 36529 | 8b | 15 to 20°F | 22 km |
| 36538 | 8b | 15 to 20°F | 23 km |
| 39362 | 8b | 15 to 20°F | 29 km |
| 36553 | 8b | 15 to 20°F | 30 km |
| 36584 | 8b | 15 to 20°F | 33 km |
| 36919 | 8b | 15 to 20°F | 33 km |
| 36522 | 8b | 15 to 20°F | 43 km |
| 36908 | 8b | 15 to 20°F | 45 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 USC00011566, at 31.4714, -88.2503, elevation 87 m (285 ft).
- Data quality: Representative (10+ years), 21 years of freeze data.
- Average days per year at or below 32°F: 51.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Jackson (31 km)
- Whatley (55 km)
- Thomasville 2 S (67 km)
- Thomasville (70 km)
- Bay Minette (79 km)
- Atmore (84 km)
- Mobile (88 km)
- Mobile Dwtn Airport (96 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.