Last spring frost
Feb 4
Frost Dates for Delacroix, LA
First fall frost
Dec 15
Growing season
312 days
Hardiness zone
9b
In an average year around Delacroix, LA, the last spring frost (32°F) is about Feb 4 and the first fall frost is about Dec 15, giving roughly a 312-day growing season. To be safe most years, wait until Dec 31 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) | Mar 20 | Feb 26 | Jan 31 |
| Freeze (32°F) | Mar 6 | Feb 4 | Dec 31 |
| Hard (28°F) | Feb 23 | Jan 21 | Dec 21 |
| Severe (24°F) | Feb 5 | Jan 13 | Dec 22 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 20 | Mar 12 | Mar 6 | Mar 1 | Feb 26 | Feb 20 | Feb 15 | Feb 7 | Jan 31 |
| 32°F | Mar 6 | Feb 27 | Feb 18 | Feb 11 | Feb 4 | Jan 31 | Jan 25 | Jan 16 | Dec 31 |
| 28°F | Feb 23 | Feb 7 | Jan 31 | Jan 27 | Jan 21 | Jan 15 | Jan 8 | Dec 31 | Dec 21 |
| 24°F | Feb 5 | Jan 30 | Jan 24 | Jan 18 | Jan 13 | Jan 9 | Jan 4 | Dec 31 | Dec 22 |
| 20°F | Feb 1 | Jan 27 | Jan 22 | Jan 17 | Jan 14 | Jan 10 | Jan 7 | Jan 2 | Dec 30 |
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) | Nov 12 | Nov 30 | Dec 23 |
| Freeze (32°F) | Nov 23 | Dec 15 | Jan 10 |
| Hard (28°F) | Dec 4 | Dec 30 | Jan 24 |
| Severe (24°F) | Dec 18 | Jan 5 | Jan 27 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Nov 12 | Nov 17 | Nov 22 | Nov 26 | Nov 30 | Dec 2 | Dec 5 | Dec 11 | Dec 23 |
| 32°F | Nov 23 | Dec 1 | Dec 5 | Dec 9 | Dec 15 | Dec 20 | Dec 26 | Jan 2 | Jan 10 |
| 28°F | Dec 4 | Dec 11 | Dec 18 | Dec 24 | Dec 30 | Jan 2 | Jan 7 | Jan 12 | Jan 24 |
| 24°F | Dec 18 | Dec 25 | Dec 31 | Jan 1 | Jan 5 | Jan 8 | Jan 12 | Jan 18 | Jan 27 |
| 20°F | Dec 27 | Jan 1 | Jan 2 | Jan 6 | Jan 11 | Jan 13 | Jan 18 | Jan 22 | Jan 28 |
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: St Bernard, La, about 5.6 miles away@if(!empty($station['elevation_ft'])), at 5 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 Delacroix, LA?
On average, the last spring frost (32°F) around Delacroix, LA is about Feb 4. In cooler years it can run later, so for a safer bet many gardeners wait until Dec 31.
When is the first frost in the fall?
The first fall frost around Delacroix, LA typically arrives about Dec 15. 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 Feb 4 on average, or Dec 31 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 312 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 70085 Planting calendar → Louisiana frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026