Frost dates for Montgomery Airport, AL
At Montgomery Airport, the median last spring frost (32°F) is Mar 13 and the median first fall frost is Nov 13, for a typical growing season of 244 days. For a 90% chance that the last frost has passed, wait until Mar 31. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 13Last spring frost (median)50% chance of 32°F after this date
- Mar 31Safer planting date10% chance of 32°F after this date
- Nov 13First fall frost (median)50% chance of 32°F by this date
- 244 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 29 | Apr 16 |
| 32°F | Feb 20 | Mar 13 | Mar 31 |
| 28°F | Jan 30 | Feb 27 | Mar 19 |
| 24°F | Jan 9 | Feb 7 | Mar 7 |
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 21 | Nov 3 | Nov 18 |
| 32°F | Oct 31 | Nov 13 | Dec 1 |
| 28°F | Nov 8 | Nov 25 | Dec 24 |
| 24°F | Nov 17 | Dec 14 | Jan 16 |
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 | 198 days | 220 days | 244 days |
| 32°F | 220 days | 244 days | 271 days |
| 28°F | 244 days | 272 days | 305 days |
| 24°F | 265 days | 306 days | 343 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 |
|---|---|---|---|
| 36108 | 8b | 15 to 20°F | 4 km |
| 36112 | 8b | 15 to 20°F | 10 km |
| 36113 | 8b | 15 to 20°F | 11 km |
| 36043 | 8b | 15 to 20°F | 13 km |
| 36101 | 8b | 15 to 20°F | 14 km |
| 36104 | 8b | 15 to 20°F | 14 km |
| 36054 | 8b | 15 to 20°F | 19 km |
| 36066 | 8b | 15 to 20°F | 20 km |
| 36752 | 8b | 15 to 20°F | 21 km |
| 36020 | 8b | 15 to 20°F | 24 km |
| 36008 | 8b | 15 to 20°F | 26 km |
| 36040 | 8b | 15 to 20°F | 28 km |
| 36025 | 8b | 15 to 20°F | 28 km |
| 36067 | 8b | 15 to 20°F | 28 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 USW00013895, at 32.2997, -86.4075, elevation 62 m (202 ft).
- Data quality: Standard (24+ years of data), 25 years of freeze data.
- Average days per year at or below 32°F: 37.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Montgomery 6sw (18 km)
- Highland Home #2 (40 km)
- Highland Home 2 S (44 km)
- Highland Home (49 km)
- Milstead (51 km)
- Selma 6 SSE (54 km)
- Greenville Crenshaw Airport (54 km)
- Selma (58 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.