Last spring frost
Mar 22
Frost Dates for Clanton, AL
First fall frost
Nov 10
Growing season
237 days
Hardiness zone
8a
In an average year around Clanton, AL, the last spring frost (32°F) is about Mar 22 and the first fall frost is about Nov 10, giving roughly a 237-day growing season. To be safe most years, wait until Feb 28 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Apr 20 | Apr 4 | Mar 16 |
| Freeze (32°F) | Apr 9 | Mar 22 | Feb 28 |
| Hard (28°F) | Mar 26 | Mar 5 | Feb 11 |
| Severe (24°F) | Mar 13 | Feb 17 | Jan 20 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 20 | Apr 15 | Apr 10 | Apr 7 | Apr 4 | Apr 1 | Mar 28 | Mar 24 | Mar 16 |
| 32°F | Apr 9 | Apr 3 | Mar 29 | Mar 26 | Mar 22 | Mar 17 | Mar 13 | Mar 7 | Feb 28 |
| 28°F | Mar 26 | Mar 19 | Mar 14 | Mar 10 | Mar 5 | Feb 28 | Feb 25 | Feb 19 | Feb 11 |
| 24°F | Mar 13 | Mar 6 | Mar 1 | Feb 24 | Feb 17 | Feb 12 | Feb 6 | Jan 30 | Jan 20 |
| 20°F | Mar 3 | Feb 24 | Feb 13 | Feb 6 | Feb 1 | Jan 27 | Jan 20 | Jan 13 | Jan 2 |
| 16°F | Feb 14 | Feb 6 | Jan 31 | Jan 27 | Jan 22 | Jan 16 | Jan 11 | Jan 4 | Dec 27 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Oct 19 | Nov 1 | Nov 16 |
| Freeze (32°F) | Oct 30 | Nov 10 | Dec 1 |
| Hard (28°F) | Nov 5 | Nov 23 | Dec 15 |
| Severe (24°F) | Nov 15 | Dec 7 | Jan 7 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 19 | Oct 23 | Oct 27 | Oct 29 | Nov 1 | Nov 3 | Nov 6 | Nov 9 | Nov 16 |
| 32°F | Oct 30 | Nov 2 | Nov 5 | Nov 7 | Nov 10 | Nov 13 | Nov 17 | Nov 23 | Dec 1 |
| 28°F | Nov 5 | Nov 10 | Nov 15 | Nov 19 | Nov 23 | Nov 28 | Dec 1 | Dec 5 | Dec 15 |
| 24°F | Nov 15 | Nov 22 | Nov 29 | Dec 2 | Dec 7 | Dec 13 | Dec 24 | Dec 31 | Jan 7 |
| 20°F | Dec 1 | Dec 9 | Dec 20 | Dec 27 | Jan 1 | Jan 5 | Jan 11 | Jan 17 | Jan 31 |
| 16°F | Dec 15 | Dec 27 | Jan 1 | Jan 5 | Jan 10 | Jan 15 | Jan 20 | Jan 27 | Feb 5 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: Clanton 2 Ne, Al, about 6.7 miles away@if(!empty($station['elevation_ft'])), at 584 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in Clanton, AL?
On average, the last spring frost (32°F) around Clanton, AL is about Mar 22. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 28.
When is the first frost in the fall?
The first fall frost around Clanton, AL typically arrives about Nov 10. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Mar 22 on average, or Feb 28 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 237 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 35046 Planting calendar → Alabama frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026