Last spring frost
Mar 8
Frost Dates for Mayo, FL
First fall frost
Nov 25
Growing season
264 days
Hardiness zone
9a
In an average year around Mayo, FL, the last spring frost (32°F) is about Mar 8 and the first fall frost is about Nov 25, giving roughly a 264-day growing season. To be safe most years, wait until Feb 8 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 17 | Mar 28 | Mar 2 |
| Freeze (32°F) | Apr 2 | Mar 8 | Feb 8 |
| Hard (28°F) | Mar 15 | Feb 17 | Jan 14 |
| Severe (24°F) | Feb 27 | Jan 31 | Dec 28 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 17 | Apr 10 | Apr 5 | Apr 1 | Mar 28 | Mar 22 | Mar 17 | Mar 11 | Mar 2 |
| 32°F | Apr 2 | Mar 25 | Mar 18 | Mar 14 | Mar 8 | Mar 3 | Feb 26 | Feb 19 | Feb 8 |
| 28°F | Mar 15 | Mar 6 | Feb 28 | Feb 23 | Feb 17 | Feb 10 | Feb 4 | Jan 28 | Jan 14 |
| 24°F | Feb 27 | Feb 18 | Feb 10 | Feb 3 | Jan 31 | Jan 25 | Jan 16 | Jan 7 | Dec 28 |
| 20°F | Feb 18 | Feb 8 | Feb 3 | Jan 31 | Jan 28 | Jan 19 | Jan 11 | Jan 4 | Dec 24 |
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 26 | Nov 12 | Dec 3 |
| Freeze (32°F) | Nov 5 | Nov 25 | Dec 20 |
| Hard (28°F) | Nov 19 | Dec 13 | Jan 18 |
| Severe (24°F) | Dec 3 | Jan 3 | Feb 5 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 26 | Nov 1 | Nov 5 | Nov 9 | Nov 12 | Nov 15 | Nov 19 | Nov 24 | Dec 3 |
| 32°F | Nov 5 | Nov 11 | Nov 16 | Nov 20 | Nov 25 | Nov 30 | Dec 3 | Dec 8 | Dec 20 |
| 28°F | Nov 19 | Nov 28 | Dec 3 | Dec 7 | Dec 13 | Dec 22 | Dec 31 | Jan 5 | Jan 18 |
| 24°F | Dec 3 | Dec 11 | Dec 19 | Dec 30 | Jan 3 | Jan 9 | Jan 15 | Jan 26 | Feb 5 |
| 20°F | Dec 12 | Dec 27 | Jan 1 | Jan 7 | Jan 12 | Jan 21 | Jan 28 | Feb 2 | Feb 10 |
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: Mayo, Fl, about 4.8 miles away@if(!empty($station['elevation_ft'])), at 65 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 Mayo, FL?
On average, the last spring frost (32°F) around Mayo, FL is about Mar 8. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 8.
When is the first frost in the fall?
The first fall frost around Mayo, FL 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 8 on average, or Feb 8 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 264 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 32066 Planting calendar → Florida frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026