Last spring frost
Feb 25
Frost Dates for Jacksonville, FL
First fall frost
Dec 7
Growing season
288 days
Hardiness zone
9b
In an average year around Jacksonville, FL, the last spring frost (32°F) is about Feb 25 and the first fall frost is about Dec 7, giving roughly a 288-day growing season. To be safe most years, wait until Jan 22 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 1 | Mar 13 | Feb 19 |
| Freeze (32°F) | Mar 19 | Feb 25 | Jan 22 |
| Hard (28°F) | Mar 4 | Feb 4 | Jan 4 |
| Severe (24°F) | Feb 15 | Jan 21 | Dec 26 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 1 | Mar 25 | Mar 20 | Mar 16 | Mar 13 | Mar 9 | Mar 5 | Feb 28 | Feb 19 |
| 32°F | Mar 19 | Mar 12 | Mar 7 | Mar 2 | Feb 25 | Feb 19 | Feb 13 | Feb 4 | Jan 22 |
| 28°F | Mar 4 | Feb 26 | Feb 17 | Feb 10 | Feb 4 | Jan 30 | Jan 22 | Jan 15 | Jan 4 |
| 24°F | Feb 15 | Feb 8 | Feb 3 | Jan 29 | Jan 21 | Jan 17 | Jan 10 | Jan 4 | Dec 26 |
| 20°F | Feb 12 | Feb 7 | Feb 4 | Jan 29 | Jan 24 | Jan 18 | Jan 14 | Jan 5 | 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) | Nov 7 | Nov 22 | Dec 13 |
| Freeze (32°F) | Nov 17 | Dec 7 | Jan 10 |
| Hard (28°F) | Nov 29 | Jan 2 | Feb 3 |
| Severe (24°F) | Dec 9 | Jan 10 | Feb 8 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Nov 7 | Nov 12 | Nov 16 | Nov 19 | Nov 22 | Nov 26 | Dec 1 | Dec 4 | Dec 13 |
| 32°F | Nov 17 | Nov 23 | Nov 29 | Dec 3 | Dec 7 | Dec 12 | Dec 22 | Jan 1 | Jan 10 |
| 28°F | Nov 29 | Dec 5 | Dec 13 | Dec 26 | Jan 2 | Jan 7 | Jan 13 | Jan 20 | Feb 3 |
| 24°F | Dec 9 | Dec 21 | Dec 31 | Jan 4 | Jan 10 | Jan 15 | Jan 21 | Feb 1 | Feb 8 |
| 20°F | Dec 26 | Jan 4 | Jan 14 | Jan 17 | Jan 20 | Jan 26 | Feb 2 | Feb 6 | Feb 11 |
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: Jacksonville, Fl, about 8.5 miles away@if(!empty($station['elevation_ft'])), at 33 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 Jacksonville, FL?
On average, the last spring frost (32°F) around Jacksonville, FL is about Feb 25. In cooler years it can run later, so for a safer bet many gardeners wait until Jan 22.
When is the first frost in the fall?
The first fall frost around Jacksonville, FL typically arrives about Dec 7. 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 25 on average, or Jan 22 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 288 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 32209 Planting calendar → Florida frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026