Last spring frost
Mar 11
Frost Dates for Clio, AL
First fall frost
Nov 19
Growing season
254 days
Hardiness zone
8b
In an average year around Clio, AL, the last spring frost (32°F) is about Mar 11 and the first fall frost is about Nov 19, giving roughly a 254-day growing season. To be safe most years, wait until Feb 17 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 14 | Mar 27 | Mar 5 |
| Freeze (32°F) | Mar 30 | Mar 11 | Feb 17 |
| Hard (28°F) | Mar 20 | Feb 28 | Jan 31 |
| Severe (24°F) | Mar 9 | Feb 9 | Jan 6 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 14 | Apr 6 | Apr 3 | Mar 31 | Mar 27 | Mar 23 | Mar 18 | Mar 13 | Mar 5 |
| 32°F | Mar 30 | Mar 24 | Mar 20 | Mar 16 | Mar 11 | Mar 6 | Mar 2 | Feb 25 | Feb 17 |
| 28°F | Mar 20 | Mar 14 | Mar 8 | Mar 3 | Feb 28 | Feb 22 | Feb 16 | Feb 8 | Jan 31 |
| 24°F | Mar 9 | Mar 1 | Feb 24 | Feb 16 | Feb 9 | Feb 3 | Jan 30 | Jan 22 | Jan 6 |
| 20°F | Feb 26 | Feb 13 | Feb 6 | Feb 1 | Jan 28 | Jan 20 | Jan 13 | Jan 6 | Dec 28 |
| 16°F | Feb 8 | Feb 1 | Jan 30 | Jan 24 | Jan 19 | Jan 16 | Jan 12 | Jan 6 | Jan 1 |
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 24 | Nov 8 | Nov 28 |
| Freeze (32°F) | Nov 1 | Nov 19 | Dec 11 |
| Hard (28°F) | Nov 11 | Dec 3 | Jan 6 |
| Severe (24°F) | Nov 23 | Dec 28 | Jan 30 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 24 | Oct 29 | Nov 1 | Nov 5 | Nov 8 | Nov 11 | Nov 14 | Nov 19 | Nov 28 |
| 32°F | Nov 1 | Nov 7 | Nov 11 | Nov 15 | Nov 19 | Nov 24 | Nov 28 | Dec 3 | Dec 11 |
| 28°F | Nov 11 | Nov 19 | Nov 24 | Nov 30 | Dec 3 | Dec 9 | Dec 19 | Dec 29 | Jan 6 |
| 24°F | Nov 23 | Dec 3 | Dec 10 | Dec 21 | Dec 28 | Jan 2 | Jan 8 | Jan 16 | Jan 30 |
| 20°F | Dec 9 | Dec 20 | Dec 29 | Jan 3 | Jan 8 | Jan 14 | Jan 20 | Jan 27 | Feb 7 |
| 16°F | Dec 30 | Jan 1 | Jan 7 | Jan 12 | Jan 15 | Jan 19 | Jan 25 | Jan 30 | 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: Clayton, Al, about 14.7 miles away@if(!empty($station['elevation_ft'])), at 569 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 Clio, AL?
On average, the last spring frost (32°F) around Clio, AL is about Mar 11. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 17.
When is the first frost in the fall?
The first fall frost around Clio, AL typically arrives about Nov 19. 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 11 on average, or Feb 17 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 254 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 36017 Planting calendar → Alabama frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026