Last spring frost
Mar 2
Frost Dates for Fenton, LA
First fall frost
Nov 25
Growing season
267 days
Hardiness zone
9a
In an average year around Fenton, LA, the last spring frost (32°F) is about Mar 2 and the first fall frost is about Nov 25, giving roughly a 267-day growing season. To be safe most years, wait until Jan 30 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 11 | Mar 20 | Feb 22 |
| Freeze (32°F) | Mar 26 | Mar 2 | Jan 30 |
| Hard (28°F) | Mar 13 | Feb 11 | Jan 11 |
| Severe (24°F) | Mar 1 | Jan 27 | Dec 25 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 11 | Apr 4 | Mar 30 | Mar 25 | Mar 20 | Mar 15 | Mar 9 | Mar 2 | Feb 22 |
| 32°F | Mar 26 | Mar 19 | Mar 13 | Mar 7 | Mar 2 | Feb 26 | Feb 20 | Feb 10 | Jan 30 |
| 28°F | Mar 13 | Mar 4 | Feb 26 | Feb 19 | Feb 11 | Feb 3 | Jan 30 | Jan 24 | Jan 11 |
| 24°F | Mar 1 | Feb 16 | Feb 6 | Jan 31 | Jan 27 | Jan 22 | Jan 15 | Jan 5 | Dec 25 |
| 20°F | Feb 13 | Feb 3 | Jan 31 | Jan 26 | Jan 20 | Jan 14 | Jan 9 | Jan 3 | Dec 26 |
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 28 | Nov 12 | Dec 1 |
| Freeze (32°F) | Nov 3 | Nov 25 | Dec 21 |
| Hard (28°F) | Nov 15 | Dec 10 | Jan 15 |
| Severe (24°F) | Dec 1 | Jan 1 | Feb 3 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 28 | Nov 1 | Nov 5 | Nov 8 | Nov 12 | Nov 16 | Nov 20 | Nov 25 | Dec 1 |
| 32°F | Nov 3 | Nov 9 | Nov 16 | Nov 20 | Nov 25 | Nov 30 | Dec 3 | Dec 8 | Dec 21 |
| 28°F | Nov 15 | Nov 24 | Dec 1 | Dec 4 | Dec 10 | Dec 19 | Dec 27 | Jan 4 | Jan 15 |
| 24°F | Dec 1 | Dec 8 | Dec 17 | Dec 26 | Jan 1 | Jan 5 | Jan 11 | Jan 17 | Feb 3 |
| 20°F | Dec 19 | Dec 30 | Jan 2 | Jan 5 | Jan 10 | Jan 13 | Jan 19 | Feb 1 | Feb 6 |
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: Moss Bluff 2 Nnw, La, about 17.9 miles away@if(!empty($station['elevation_ft'])), at 25 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 Fenton, LA?
On average, the last spring frost (32°F) around Fenton, LA is about Mar 2. In cooler years it can run later, so for a safer bet many gardeners wait until Jan 30.
When is the first frost in the fall?
The first fall frost around Fenton, LA typically arrives about Nov 25. 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 2 on average, or Jan 30 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 267 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 70640 Planting calendar → Louisiana frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026